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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>The Web of Tomorrow</title>
<link rel="shortcut icon" href="images/pnwds-favicon.png" type="image/png" />
<link rel="stylesheet" href="lib/css/font-awesome.min.css">
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/moon.css">
<link rel="stylesheet" href="css/base.css">
<link rel="stylesheet" href="css/slides.css">
<!-- Theme used for syntax highlighting of code -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match(/print-pdf/gi) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName('head')[0].appendChild(link);
</script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<section id="title"
class="center"
data-transition="fade">
<h1>The Web of Tomorrow</h1>
<h2>Better Faster Stronger</h2>
<h3>Geoff Appleby</h3>
<h4>Pacific Northwest Drupal Summit 2017</h4>
</section>
<section id="about"
class="center"
data-background-image="images/eaglebluffs.jpg"
data-transition="slide">
<aside>
<h2>Geoff Appleby</h2>
<ul class="accounts">
<li class="drupal"><a href="https://www.drupal.org/u/gapple"><i class="fa fa-drupal"></i> <span>gapple</span></a></li>
<li class="twitter"><a href="https://twitter.com/gappleca"><i class="fa fa-twitter"></i> <span>gappleca</span></a></li>
</ul>
<ul class="projects">
<li><a href="https://www.drupal.org/project/gacsp">gacsp: Google Analytics</a></li>
<li><a href="https://www.drupal.org/project/persistent_login">Persistent Login</a></li>
<li><a href="https://drupalreleasedate.com">DrupalReleaseDate.com</a></li>
</ul>
</aside>
</section>
<section id="myplanet"
class="center"
data-background="#ed5b33"
data-transition="fade">
<img class="logo" src="images/myplanet-logo.png"/>
<div class="locations">
<img src="images/myplanet-vancouver.png"/>
<img src="images/myplanet-toronto.png"/>
<img src="images/myplanet-cherniv.png"/>
</div>
</section>
</section>
<section>
<section id="h2-title">
<h1>HTTP/2</h1>
<!-- https://pixabay.com/en/unicorn-armor-fantasy-fairy-tale-2047233/ -->
<img class="fragment" src="images/unicorn_armour.png"/>
</section>
<section id="h2-support">
<h2>Support</h2>
<div class="columns">
<div class="column">
<h3>Browsers</h3>
<ul>
<li>Chrome</li>
<li>Firefox</li>
<li>Safari 9*</li>
<li>IE 11*</li>
<li>Edge</li>
</ul>
</div>
<div class="column">
<h3>Servers</h3>
<ul>
<li>Apache 2.4*</li>
<li>Nginx 1.9.5</li>
<li>Varnish 5.0</li>
</ul>
</div>
<div class="column">
<h3>CDNs</h3>
<ul>
<li>Cloudflare</li>
<li>Akamai</li>
<li>Cloudfront</li>
<li>Fastly</li>
</ul>
</div>
</div>
<aside class="notes" data-markdown>
- FF 36 (Feb 2015)
- Chrome 41 (Mar 2015)
- IE: Win 10
- Safari: 10.11+ (El Capitan, Sep 2015)
- Apache experimental module
- not in Ubuntu repositories yet
- Nginx configuration
- Varnish configuration
</aside>
</section>
</section>
<section>
<section id="h2-negotiation">
<h2>ALPN Negotiation</h2>
<div class="conversation">
<blockquote class="fragment"><i class="fa fa-desktop"></i> "Hey, I'd like to talk to you with TLS and HTTP/2"</blockquote>
<blockquote class="fragment"><i class="fa fa-server"></i>"Okay, let's talk with TLS and HTTP/2"</blockquote>
<blockquote class="fragment"><i class="fa fa-desktop"></i> "Can you send me index.html over HTTP/2?"</blockquote>
</div>
<aside class="notes" data-markdown>
- Application Layer Protocol Negotiation
- Sends extra information in connection request
- Similar to Server Name Indication
</aside>
</section>
<section id="h2-negotiation-not-supported">
<h2><strike>ALPN</strike> Negotiation</h2>
<div class="conversation">
<blockquote><i class="fa fa-desktop"></i> "Hey, I'd like to talk to you with TLS and HTTP/2"</blockquote>
<blockquote class="fragment"><i class="fa fa-server"></i>"Okay, let's talk with TLS"</blockquote>
<blockquote class="fragment"><i class="fa fa-desktop"></i> "Can you send me index.html with HTTP 1.1?"</blockquote>
</div>
</section>
<aside class="notes" data-markdown>
- Safely falls back to HTTP 1.1
</aside>
</section>
<section>
<section id="h2-connections-http1">
<div class="wrapper">
<h2>HTTP 1</h2>
<div class="streams-figure h1">
<div class="endpoint"><i class="fa fa-desktop"></i></div>
<div class="transfer">
<div class="connection">
<div class="request"><span>GET /index.html</span> <i class="fa fa-arrow-right"></i></div>
<div class="response"><i class="fa fa-arrow-left"></i> <span>index.html</span></div>
</div>
<div class="connection">
<div class="request"><span>GET /styles.css</span> <i class="fa fa-arrow-right"></i></div>
<div class="response"><i class="fa fa-arrow-left"></i> <span>style.css</span></div>
</div>
<div class="connection">
<div class="request"><span>GET /scripts.js</span> <i class="fa fa-arrow-right"></i></div>
<div class="response"><i class="fa fa-arrow-left"></i> <span>scripts.js</span></div>
</div>
<div class="connection">
<div class="request"><span>GET /image1.png</span> <i class="fa fa-arrow-right"></i></div>
<div class="response"><i class="fa fa-arrow-left"></i> <span>image1.png</span></div>
</div>
</div>
<div class="endpoint"><i class="fa fa-server"></i></div>
</div>
</div>
<aside class="notes" data-markdown>
- Connections have overhead to setup
- Limit on open connections (6-8)
</aside>
</section>
<section>
<h2>HTTP 1.1 Hacks</h2>
<ul>
<li>Keep-Alive</li>
<li>Sharding</li>
<li>Concatenation</li>
<li>Sprites & Icon Fonts</li>
</ul>
<aside class="notes" data-markdown>
- Mitigate expense of connection setup
- Mitigate limit on open connections
-
- Font Awesome; 100kb for seven icons in this presentation
</aside>
</section>
<section id="h2-connections-http2">
<div class="wrapper">
<h2>HTTP/2</h2>
<div class="streams-figure h2">
<div class="endpoint"><i class="fa fa-desktop"></i></div>
<div class="transfer">
<div class="connection">
<div class="requests">
<i class="fa fa-arrow-right"></i>
<div class="frame">
<div class="type"></div>
<div class="content">GET /index.html</div>
<div class="streamid">1</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /style.css</div>
<div class="streamid">3</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /scripts.js</div>
<div class="streamid">5</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /image1.png</div>
<div class="streamid">7</div>
</div>
</div>
<div class="responses">
<i class="fa fa-arrow-left"></i>
<div class="frame">
<div class="type">Headers</div>
<div class="content">index.html</div>
<div class="streamid">2</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">index.html</div>
<div class="streamid">2</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">style.css</div>
<div class="streamid">4</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">style.css</div>
<div class="streamid">4</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">scripts.js</div>
<div class="streamid">6</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">scripts.js</div>
<div class="streamid">6</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
<div class="frame">
<div class="type">Data [0]</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
<div class="frame">
<div class="type">Data [1]</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
</div>
</div>
</div>
<div class="endpoint"><i class="fa fa-server"></i></div>
</div>
</div>
<aside class="notes" data-markdown>
- Single connection reduces overhead
- Bigger benefit on high-latency connections
- Greater concurrency (min 100)
</aside>
</section>
<section id="h2-prioritization">
<h2>Prioritization</h2>
<ol>
<li>HTML</li>
<li>CSS</li>
<li>JavaScript</li>
<li>Images</li>
</ol>
</section>
<section id="h2-prioritization-chrome">
<h2>Prioritization</h2>
<ul class="h2-priorities">
<li><span class="priority">256</span> HTML
<li><span class="priority">220</span> CSS</li>
<li><span class="priority">183</span> Header JavaScript</li>
<li><span class="priority">183</span> Footer Javascript</li>
<li><span class="priority">110</span> Images</li>
</ul>
<aside class="notes" data-markdown>
- Browser is in control of priorities
- Implementations differ, may change
</aside>
</section>
<section id="h2-prioritization-firefox">
<h2>Prioritization</h2>
<ul class="h2-priorities">
<li><span class="priority">201</span> [Primary Content]
<ul>
<li><span class="priority">1</span> [Secondary Content]
<ul>
<li><span class="priority">32</span> HTML</li>
<li class="fragment" data-fragment-index="2"><span class="priority">22</span> Images</li>
</ul></li>
<li class="fragment" data-fragment-index="1"><span class="priority">32</span> CSS</li>
<li class="fragment" data-fragment-index="1"><span class="priority">32</span> Header JavaScript</li>
</ul>
</li>
<li><span class="priority">101</span> [Tertiary Content]
<ul>
<li class="fragment" data-fragment-index="2"><span class="priority">183</span> Footer Javascript</li>
</ul>
</li>
</ul>
<aside class="notes" data-markdown>
- Firefox sets up dependency tree
- Dependencies are not strict (can start before dependency complete)
</aside>
</section>
</section>
<section>
<section id="h2-hpack">
<h2>HPACK</h2>
<table class="static-header-table">
<tr><th>Code</th><th>Name</th><th>Value</th></tr>
<tr><td>1 </td><td>:authority </td><td></td> </tr>
<tr><td>2 </td><td>:method </td><td>GET </td></tr>
<tr><td>3 </td><td>:method </td><td>POST </td></tr>
<tr><td>4 </td><td>:path </td><td>/ </td></tr>
<tr><td>5 </td><td>:path </td><td>/index.html </td></tr>
<tr><td>6 </td><td>:scheme </td><td>http </td></tr>
<tr><td>7 </td><td>:scheme </td><td>https </td></tr>
<tr><td>8 </td><td>:status </td><td>200 </td></tr>
<tr><td>9 </td><td>:status </td><td>204 </td></tr>
<tr><td>10</td><td>:status </td><td>206 </td></tr>
<tr><td>11</td><td>:status </td><td>304 </td></tr>
<tr><td>12</td><td>:status </td><td>400 </td></tr>
<tr><td>13</td><td>:status </td><td>404 </td></tr>
<tr><td>14</td><td>:status </td><td>500 </td></tr>
<tr><td>15</td><td>accept-charset </td><td></td> </tr>
<tr><td>16</td><td>accept-encoding</td><td>gzip, deflate</td></tr>
<tr><td>17</td><td>accept-language</td><td></td> </tr>
<tr><td>18</td><td>accept-ranges </td><td></td> </tr>
<tr><td>19</td><td>accept </td><td></td> </tr>
</table>
<aside class="notes" data-markdown>
- Static table reduces data sent for common values
- Dynamic table
</aside>
</section>
</section>
<section>
<section id="h2-server-push">
<h2>Server Push</h2>
<div class="conversation">
<blockquote class="fragment"><i class="fa fa-desktop"></i> "Can you send me index.html over HTTP/2?"</blockquote>
<blockquote class="fragment"><i class="fa fa-server"></i>"Okay, here is index.html"</blockquote>
<blockquote class="fragment"><i class="fa fa-server"></i>"You'll also need styles.css"</blockquote>
<blockquote class="fragment"><i class="fa fa-server"></i>"Here is styles.css"</blockquote>
</div>
</section>
<section class="center">
<h2>What should we push?</h2>
<h2 class="fragment">¯\_(ツ)_/¯</h2>
</section>
<section data-background-image="images/module_http2_server_push.png"></section>
</section>
<section>
<section id="h2-concerns">
<h2>Concerns</h2>
<ul>
<li class="fragment">Server Push versus Browser Cache</li>
<li class="fragment">Excessive Multiplexing</li>
<li class="fragment">Packet Loss</li>
</ul>
</section>
<aside class="notes" data-markdown>
- Downloading 100 images means all could be (slightly) slower
- Data for not visible images transferred before visible images complete
- Packet loss limits connection speed
- Impacts one connection greater than sum of multiple connections
- Comparable at 1%, HTTP 1.1 wins at 2%
- Testing used random packet loss; worst case scenario
- Real world packet loss may have less impact
</aside>
</section>
<section>
<h2>Best Practices</h2>
<ul>
<li>Limit sharding</li>
<li>Still concatenate</li>
<li>Limit server push</li>
</ul>
<aside class="notes">
- Limit to content & asset domain
- Concatenate related assets
- Drupal's strategy may win here
</aside>
</section>
<section>
<h1>QUIC</h1>
<ul class="fragment">
<li>UDP</li>
<li>Only supported by Chrome & Google</li>
</ul>
<aside class="notes" data-markdown>
UDP based
Supported by Chrome
</aside>
</section>
<!-- Security Warnings -->
<section>
<section class="center">
<img src="images/password-warning.png" />
</section>
<section class="center">
<img src="images/security-indicator-1.png" /><br/>
<img class="fragment" src="images/security-indicator-2.png" />
</section>
</section>
<!-- Let's Encrypt -->
<section>
<section id="lets-encrypt" data-background="#eee">
<img src="images/le-logo-standard.svg" height="500"/>
</section>
<section>
<h2>Let's Encrypt</h2>
<ul>
<li>Free TLS certificates</li>
<li>Automated</li>
<li>Short Lifetime</li>
</ul>
<aside class="notes" data-markdown>
- valid for 3 months, renew after 2
</aside>
</section>
<section>
<img src="images/le-stats.png" />
</section>
<section>
<figure class="code">
<pre><code>
$ sudo apt-get certbot
$ sudo certbot certonly --webroot -w /var/www/ -d example.com -d www.example.com
$ sudo certbot renew --quiet --no-self-upgrade
</code></pre>
</figure>
<aside class="notes">
-
</aside>
</section>
</section>
<section>
<section id="hsts">
<h2>Strict Transport Security</h2>
<figure class="code">
<pre><code data-noescape>
Strict-Transport-Security: max-age=31536000
Strict-Transport-Security: max-age=31536000; includeSubDomains
Strict-Transport-Security: max-age=31536000; preload <i class="fa fa-warning" style="position: absolute; left: -30px; font-size: 80%; margin-top: 6px;"></i>
</code></pre>
</figure>
<aside class="notes" data-markdown>
- Next visit replace HTTP with HTTPS
- Cached for time specified
</aside>
</section>
<section>
<h2>Strict Transport Security</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td>11</td>
<td><i class="fa fa-check"></i></td>
</tr>
</table>
</section>
</section>
<section>
<section id="hpkp">
<h2>Public Key Pinning</h2>
<figure class="code">
<pre><code>
Public-Key-Pins:
pin-sha256="cUPcTAZWKaASuYWhhneDttWpY3oBAkE3h2+soZS7sWs=";
pin-sha256="M8HztCzM3elUxkcjR2S5P4hhyBNf6lHkmjAHKhpGPWE=";
max-age=5184000
Public-Key-Pins-Report-Only:
pin-sha256="cUPcTAZWKaASuYWhhneDttWpY3oBAkE3h2+soZS7sWs=";
pin-sha256="M8HztCzM3elUxkcjR2S5P4hhyBNf6lHkmjAHKhpGPWE=";
max-age=5184000
</code></pre>
</figure>
</section>
<section>
<h2>Public Key Pinning</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-times"></i></td>
<td><i class="fa fa-times"></i></td>
</tr>
</table>
</section>
</section>
<section>
<section>
<h2>Referrer Policy</h2>
<figure class="code">
<pre><code>
Referrer-Policy: no-referrer-when-downgrade
<span class="fragment">Referrer-Policy: no-referrer</span>
<span class="fragment">Referrer-Policy: same-origin</span>
<span class="fragment">Referrer-Policy: strict-origin-when-cross-origin</span>
</code></pre>
</figure>
</section>
<section>
<h2>Referrer Policy</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td>50</td>
<td>56</td>
<td><i class="fa fa-times"></i></td>
<td><i class="fa fa-times"></i></td>
</tr>
</table>
</section>
</section>
<!-- Content Security Policy -->
<section>
<section>
<h2>Content Security Policy</h2>
<figure class="code">
<pre><code>
Content-Security-Policy: default-src 'self'
<span class="fragment">Content-Security-Policy: default-src 'self' *.example.com</span>
<span class="fragment">Content-Security-Policy: default-src 'self'; img-src *;
style-src assets.example.com; script-src assets.example.com</span>
<span class="fragment">Content-Security-Policy: upgrade-insecure-requests; default-src 'self'</span>
</code></pre>
</figure>
</section>
<aside class="notes" data-markdown>
- 'self' doesn't allow subdomains
- upgrade-insecure-requests forces all http links to https
</aside>
</section>
<section>
<section>
<h2>Content Security Policy</h2>
<figure class="code">
<pre><code>
Content-Security-Policy-Report-Only: default-src 'self';
script-src 'self' 'unsafe-inline' code.jquery.com www.google.com www.google-analytics.com;
style-src 'self' 'unsafe-inline' netdna.bootstrapcdn.com www.google.com ajax.googleapis.com;
img-src 'self' s3.amazonaws.com www.google-analytics.com stats.g.doubleclick.net;
connect-src 'self' www.drupal.org www.google-analytics.com;
report-uri https://gapple.report-uri.io/r/default/csp/reportOnly;
</code></pre>
</figure>
<aside class="notes" data-markdown>
- Drupal 8 asset libraries could automate this header
- 448 chars
- Only set on HTML pages
- HPACK may help
</aside>
</section>
<section data-background-image="images/report-uri-io.png"></section>
<section>
<h2>Content Security Policy</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td>10</td>
<td><i class="fa fa-check"></i></td>
</tr>
</table>
</section>
</section>
<section>
<section>
<h2>Subresource Integrity</h2>
<figure class="code">
<pre><code>
<script src="https://example.com/example-framework.js"
integrity="sha384-oqVuAfXRKap7fdgcCY5uykM6+R9GqQ8K/uxy9rx7HNQlGYl1kPzQho1wx4JwY8wC"></script>
</code></pre>
</figure>
<aside class="notes" data-markdown>
- Currently SHA2 variants are allowed
- CSP header can require integrity hash
</aside>
</section>
<section>
<h2>Subresource Integrity</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-times"></i></td>
<td><i class="fa fa-times"></i></td>
</tr>
</table>
</section>
</section>
<section data-background-image="images/security-headers-io.png"></section>
<!-- TODO Compression (Brotli) -->
<section>
<section>
<h2>Progressive CSS</h2>
<figure class="code">
<pre><code class="lang-html" data-escape>
<html>
<head>
<link rel="stylesheet" href="essential.css" />
</head>
<body>
<link rel="stylesheet" href="header.css" />
<header></header>
<link rel="stylesheet" href="article.css" />
<article></article>
<link rel="stylesheet" href="footer.css" />
<footer></footer>
</body>
</html>
</code></pre>
</figure>
<aside class="notes" data-markdown>
- CSS is currently blocking; all must finish
- Draft spec
- Render until CSS hit, wait for download, continue.
</aside>
</section>
</section>
<section>
<section>
<h2>Conditional Rules</h2>
<figure class="code">
<pre><code>
#about .projects a {
border-bottom: 1px solid rgba(51, 51, 51, 0.1);
}
#about .projects a:hover {
border-bottom: 1px solid rgba(51, 51, 51, 0.65);
}
<div class="fragment">@supports (text-decoration-color: rgba(51, 51, 51, 0.1)) {
#about .projects a {
border-bottom: none;
text-decoration: underline rgba(51, 51, 51, 0.1);
}
#about .projects a:hover {
border-bottom: none;
text-decoration: underline rgba(51, 51, 51, 0.65);
}
}</div>
</code></pre>
</figure>
</section>
<section>
<h2>Conditional Rules</h2>
<figure class="code">
<pre><code>
@supports (text-decoration-color: rgba(51, 51, 51, 0.1)) {
#about .projects a {
text-decoration: underline rgba(51, 51, 51, 0.1);
}
#about .projects a:hover {
text-decoration: underline rgba(51, 51, 51, 0.65);
}
}
@supports (not (text-decoration-color: rgba(51, 51, 51, 0.1))) {
#about .projects a {
border-bottom: 1px solid rgba(51, 51, 51, 0.1);
}
#about .projects a:hover {
border-bottom: 1px solid rgba(51, 51, 51, 0.65);
}
}
</code></pre>
</figure>
</section>
<section>
<h2>Conditional Rules</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-edge"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-times"></i></td>
<td>9</td>
</tr>
</table>
</section>
</section>
<!-- Flexbox -->
<section>
<section>
<h2>Flexbox</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td><i class="fa fa-check"></i></td>
<td><i class="fa fa-check"></i></td>
<td>10*</td>
<td><i class="fa fa-check"></i></td>
</tr>
</table>
<aside class="notes">
- IE requires prefix until version 11
</aside>
</section>
<section>
<h2>Flexbox</h2>
<div class="flexbox-example inlinemenu no-flex">
<div class="menu-wrapper">
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
</div>
<div class="menu-wrapper fragment">
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
</div>
</div>
</section>
<section>
<h2>Flexbox</h2>
<div class="flexbox-example inlinemenu with-flex">
<div class="menu-wrapper">
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
</div>
<div class="menu-wrapper fragment">
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
<span class="menu-item">Item</span>
</div>
</div>
<aside class="notes">
- Alignment (vertically center items!)
- Adjust direction / order
</aside>
</section>
<section>
<h2>Flexbox</h2>
<div class="flexbox-example featurebox no-flex">
<div class="flexbox-example__image">Image</div>
<div class="flexbox-example__text-wrapper">
<div class="flexbox-example__text">
Lorem Ipsum
</div>
<div class="flexbox-example__button">Button</div>
</div>
</div>
</section>
<section>
<h2>Flexbox</h2>
<div class="flexbox-example featurebox with-flex">
<div class="flexbox-example__image">Image</div>
<div class="flexbox-example__text-wrapper">
<div class="flexbox-example__text">
Lorem Ipsum
</div>
<div class="flexbox-example__button">Button</div>
</div>
</div>
</section>
<section class="center">
<div class="streams-figure h2">
<div class="endpoint"><i class="fa fa-desktop"></i></div>
<div class="transfer">
<div class="connection">
<div class="requests">
<i class="fa fa-arrow-right"></i>
<div class="frame">
<div class="type"></div>
<div class="content">GET /index.html</div>
<div class="streamid">1</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /style.css</div>
<div class="streamid">3</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /scripts.js</div>
<div class="streamid">5</div>
</div>
<div class="frame">
<div class="type"></div>
<div class="content">GET /image1.png</div>
<div class="streamid">7</div>
</div>
</div>
<div class="responses">
<i class="fa fa-arrow-left"></i>
<div class="frame">
<div class="type">Headers</div>
<div class="content">index.html</div>
<div class="streamid">2</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">index.html</div>
<div class="streamid">2</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">style.css</div>
<div class="streamid">4</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">style.css</div>
<div class="streamid">4</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">scripts.js</div>
<div class="streamid">6</div>
</div>
<div class="frame">
<div class="type">Data</div>
<div class="content">scripts.js</div>
<div class="streamid">6</div>
</div>
<div class="frame">
<div class="type">Headers</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
<div class="frame">
<div class="type">Data [0]</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
<div class="frame">
<div class="type">Data [1]</div>
<div class="content">image1.png</div>
<div class="streamid">8</div>
</div>
</div>
</div>
</div>
<div class="endpoint"><i class="fa fa-server"></i></div>
</div>
<aside class="notes" data-markdown>
- Vertically centered icons
- Reverse order of request blocks
- Stretch to fit space
</aside>
</section>
<section data-background-image="images/css-tricks-flexbox-pt1.png"></section>
<section data-background-image="images/css-tricks-flexbox-pt2.png"></section>
<section data-background-image="images/flexbox-froggy.png"></section>
<section data-background-image="images/flexbox-defense.png"></section>
</section>
<section>
<section>
<h2>CSS Grids</h2>
<table class="browser-support">
<tr>
<th><i class="fa fa-firefox"></i></th>
<th><i class="fa fa-chrome"></i></th>
<th><i class="fa fa-internet-explorer"></i></th>
<th><i class="fa fa-safari"></i></th>
</tr>
<tr>
<td>52</td>
<td>57</td>
<td><i class="fa fa-times"></i></td>
<td style="font-size: 50px">Nightly*</td>
</tr>
</table>
</section>
<section data-background-image="images/jen-simmons-mondrian.png"></section>
<section data-background="#fff">
<img src="images/jen-simmons-mondrian-mobile.png" style="height: 680px" />
</section>
<section data-background-image="images/jen-simmons-spacejam.png"></section>
</section>
<!-- TODO Grids -->
<!-- TODO Getting rid of jQuery -->
<section>
<section id="resources">
<h3>Resources</h3>
<ul>
<li><a href="https://letsencrypt.org">letsencrypt.org</a></li>