youtube.css

:root {
    /* basic colors */
    --keyer-bg-color: #000; /* change for a chroma key if you want, beware profile avatars may key out */
    --comment-color: #fff;
    --comment-bg-color: #222; /* needs to be slightly above black to not get keyed out */
    --comment-border-radius: 0px;
    --comment-font-size: 40px;
    --author-color: #222;
    --author-bg-color: #ffa500;
    --author-avatar-border-color: #ffa500;
    --author-border-radius: 0px;
    --author-avatar-border-size: 3px;
    --author-avatar-size: 128px;
    --author-font-size: 30px;
    --author-avatar-overlay-opacity: 0.1;
    /* donation/superchat specific */
    --donation-color: #5a4211;
    --donation-bg-color: #fff;
    --donation-gradient-stop0: #BF953F;
    --donation-gradient-stop1: #ede599;
    --donation-gradient-stop2: #B38728;
    --donation-label-color: #fff;
    --donation-label-text: 'SUPERCHAT';
    --donation-shadow-color: #fff;

    --active-comment-bg-color: #90dd91;
    --shown-comment-bg-color: #555555;
    --highlighted-comment-bg-color: #f0f07d;

    /*
    LAYOUT
    */
    --comment-width: auto; /* go 100% for a full screen lower third style*/
    --comment-padding: 20px 40px 20px 70px;
    --comment-area-height: 30vh;
    --comment-scale: 1;
    --comment-area-size-offset: 0;
    --comment-area-bottom: 10px;
    /*
    STYLE
    */
    --font-family: Avenir Next, Helvetica, Geneva, Verdana, Arial, sans-serif;
    --highlight-chat-font-weight: 600;
    --author-font-weight: 700;
    --comment-font-weight: 600;
}

body {
    background-color: var(--keyer-bg-color);
}
body.inline-chat yt-live-chat-app {
    margin-bottom: var(--comment-area-height);
    height: calc(100vh - var(--comment-area-height)) !important;
}
.btn-clear {
    position: absolute;
    z-index: 99999;
    right: 20px;
    font-size: 30px;
    border: 1px #bbb solid;
    border-radius: 4px;
    color: #fff;
    background: #444;
    bottom: 60px;
}
body.inline-chat .btn-clear {
    bottom: calc(var(--comment-area-height) + 60px);
}

.highlighted-comment {
    background-color: var(--highlighted-comment-bg-color) !important;
}
html[dark] .highlighted-comment #message.yt-live-chat-text-message-renderer {
    color: black;
}
html[dark] .highlighted-comment:hover #message.yt-live-chat-text-message-renderer {
    color: white;
}
html[dark] .highlighted-comment #author-name.yt-live-chat-author-chip {
    color: #444;
}
html[dark] .highlighted-comment:hover #author-name.yt-live-chat-author-chip {
    color: #DDD;
}
yt-live-chat-text-message-renderer:hover {
    background-color: #eee !important;
}
html[dark] yt-live-chat-text-message-renderer:hover {
    background-color: #444 !important;
}
yt-live-chat-text-message-renderer.shown-comment {
    background-color: var(--shown-comment-bg-color) !important;
    opacity: 0.4;
}
.shown-comment:hover {
    opacity: 0.5;
}
yt-live-chat-text-message-renderer.active-comment {
    background-color: var(--active-comment-bg-color) !important;
    opacity: 1;
}
highlight-chat {
    font-family: var(--font-family);
    font-weight: var(--highlight-chat-font-weight);
    box-sizing: border-box;
    display: block;
    position: absolute;
    bottom: var(--comment-area-bottom);
    left: calc(var(--comment-area-size-offset) * -1px);
    right: calc(var(--comment-area-size-offset) * -1px);
    width: auto;
    height: var(--comment-area-height);
    z-index:99999999999;
    overflow: hidden;
    margin: 0px;
    padding: 40px 50px 40px 220px;
    background-color: var(--keyer-bg-color);
    color: #fff;
    font-size: 30px;
    transform: scale(var(--comment-scale));
}
highlight-chat.preview {
    border: 1px #ccc solid;
}
.hl-c-cont {
    position: relative;
    padding: 20px;
    width: 100%;
    margin: 0 auto;
    transition: .5s all cubic-bezier(0.250, 0.250, 0.105, 1.2);
}
.hl-c-cont.fadeout {
    transform: translateY(600px);
}

.hl-name {
    position: absolute;
    top: -20px;
    left: 50px;
    font-weight: var(--author-font-weight);
    background: var(--author-bg-color);
    color: var(--author-color);
    padding: 10px;
    transform: rotate(-0deg);
    z-index: 1;
    border-radius: var(--author-border-radius);
    font-size: var(--author-font-size);
}
.hl-name::before {
    content: '';
    background: #f6cc0c;
}
.hl-message {
    position: absolute;
    width: var(--comment-width);
    font-weight: var(--comment-font-weight);
    padding: var(--comment-padding);
    color: var(--comment-color);
    background-color: var(--comment-bg-color);
    border-radius: var(--comment-border-radius);
    font-size: var(--comment-font-size);
}
.hl-message img {
    width: 50px;
    vertical-align: middle;
}
.hl-message img.sticker {
  width: 120px;
}
.hl-message a {
    color: white;
}
.hl-img {
    position: absolute;
    top: 0;
    z-index: 1;
    left: -60px;
    width: var(--author-avatar-size);
    height: var(--author-avatar-size);
    background-color: var(--author-avatar-border-color);
    border-radius: 50%;
    border: 0;
    padding: var(--author-avatar-border-size);
}
.hl-img img {
    display: block;
    width: 100%;
    border-radius: 50%;
    z-index: 1;
}
/* overlay a very faint white layer to bump the blacks above the luma key cutoff */
.hl-img:after {
    content: '';
    display: block;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    border-radius: 50%;
    position:absolute;
    pointer-events: none;
    z-index: 3;
}
.hl-img:after {
    background: rgba(255,255,255,var(--author-avatar-overlay-opacity));
    mix-blend-mode: lighten;
}

.hl-badges {
  display: inline-block;
  margin-left: 10px;
}
.hl-badges img.yt-live-chat-author-badge-renderer {
  width: 24px;
  height: 24px;
}

.donation {
    position: absolute;
    display: block;
    text-align: center;
    left: 10px;
    top: 108px;
    z-index: 3;
    min-width: 128px;
    border-radius: 10px;
    padding: 30px 5px 0;
    overflow: hidden;
    background: linear-gradient(to right, var(--donation-gradient-stop0), var(--donation-gradient-stop1), var(--donation-gradient-stop2));
    color: var(--donation-color);
    transform: rotate(-5deg) translateX(-50%);
}

.donation.silver {
    background: linear-gradient(to right, #d6d6d6, #f1f1f1, #d6d6d6);
    color: #434343;    
}
.donation.gold {
    background: linear-gradient(to right, #BF953F, #FCF6BA, #d0aa57, #FBF5B7, #AA771C);
    color: #4d3400;
}
.donation.platinum {
    background:
        linear-gradient(
        -72deg,
        #dedeff,
        #ffffff 16%,
        #dedeff 21%,
        #ffffff 24%,
        #555564 27%,
        #dedeff 36%,
        #ffffff 45%,
        #ffffff 60%,
        #dedeff 72%,
        #ffffff 80%,
        #dedeff 84%,
        #555564);
    color: #333;
}
.donation.diamond {
    background: linear-gradient(to right, #e5f1fa, #ffffff, #dbe7ec);
    color: #00374d;
}
.donation.emerald {
    background: linear-gradient(to right, #3fbf3f, #99ed9a, #3fbf3f);
    color: #115a14;
}


.membership {
    padding: 10px 10px 5px 10px;
    font-size: 0.8em;
}
.membership-length {
    font-size: 0.8em;
}
.donation::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    font-size: 18px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.23);
    border-radius: 10px 10px 0 0;
    padding: 5px 0 0;
    display: block;
    content: var(--donation-label-text);
    color: var(--donation-label-color);
}
.membership::before {
    content: '';
}
.donation::after {
    content: '';
    position: absolute;
    top: -50%;
    left: 0;
    height: 200%;
    width: 1px;
    background-color: var(--donation-bg-color);
    box-shadow: 0 0 20px 20px var(--donation-shadow-color);
    opacity: 0.7;
    transform: rotate(9deg) translate3D(250px, 0, 0);
    animation: superchat 3s ease-in-out infinite;
}
@keyframes superchat {
    from {
        transform: rotate(9deg) translate3D(-250px, 0, 0);
    }
}

/* hide chat input to give more space to the chat */
/*
#input-panel, yt-live-chat-viewer-engagement-message-renderer {
	display: none !important;
}
*/

yt-live-chat-item-list-renderer {
	margin-bottom: 20px;
}

yt-live-chat-text-message-renderer {
    font-size: 24px !important;
    line-height: 32px;
}


yt-live-chat-text-message-renderer,
yt-live-chat-paid-message-renderer,
yt-live-chat-membership-item-renderer {
    cursor: pointer;
}

yt-live-chat-text-message-renderer[is-deleted],
yt-live-chat-paid-message-renderer[is-deleted],
yt-live-chat-membership-item-renderer[is-deleted] {
    cursor: default;
}




yt-live-chat-viewer-engagement-message-renderer {
  display: none !important;
}


#featured {
    position: absolute;
    z-index: 1000;
    top: 8px;
    right: 50px;
}
#featured img {
    vertical-align: middle;
}


.button {
  text-decoration: none;
  padding: 6px;
  border: 1px #bbb solid;
  border-radius: 4px;
  color: #fff;
  background: #444;
}
#pop-out-button {
  margin-left: 20px;
}
#pop-out-url {
  margin-left: 20px;
  font-size: 1.2em;
  width: 400px;
  border-radius: 4px;
}

.hidden {
  display: none;
}

yt-live-chat-app tp-yt-iron-dropdown {
    display: none;
}
yt-live-chat-app yt-sort-filter-sub-menu-renderer tp-yt-iron-dropdown {
    display: block;
}