style.css

/* custom style
   ========================================================================== */
body {
    background: #f2f2f2;
    font-family: 'Open Sans', sans-serif;
    padding: 10px 0 25px;
}

h2 {
    margin: 20px 0 30px;
}

/* layout
   ========================================================================== */
.container {
    max-width: 960px;
    padding: 0 20px;
}

.title {
    font-size: 3em;
    margin-bottom: 20px;
}

.box {
    background: #fff;
    border-radius: 3px;
    margin-bottom: 15px;
    padding: 10px 20px;
}

.heading {
    font-size: 2.25em;
    margin: 10px 0 5px
}

.heading span {
    color: #ddd;
    margin-right: 15px;
    text-decoration: none;
}

.text {
    font-size: 1.25em;
    margin: 15px 0;
}

.view .column,
.view .columns {
    background: #f2f2f2;
    border-radius: 3px;
    font-size: 0.750em;
    font-weight: 600;
    margin-bottom: 5px;
    padding: 5px;
    text-align: center;
    text-transform: uppercase;
}

/* link to source on github
   ========================================================================== */
.github-corner:hover .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
}

.svg {
    fill: #2197f4;
    color: #fff;
    position: fixed;
    top: 0;
    border: 0;
    right: 0;
}

@keyframes octocat-wave {

    0%,100%  {transform: rotate(0)}
    20%, 60% {transform: rotate(-25deg)}
    40%, 80% {transform: rotate(10deg)}
}

@media (max-width:500px) {

    .github-corner:hover .octo-arm {
	animation: none;
    }

    .github-corner .octo-arm {
	animation: octocat-wave 560ms ease-in-out;
    }
}