yt-local/youtube/static/watch.css

body {
    display: grid;
    grid-gap: 20px;
    grid-template-areas:
        "header"
        "main"
        "footer";
    /* Fix height */
    height: 100vh;
    grid-template-rows: auto 1fr auto;
    /* fix top and bottom */
    margin-left: 1rem;
    margin-right: 1rem;
}

img {
    width: 100%;
    height: auto;
}

video {
    width: 100%;
    height: auto;
    max-height: 480px;
}

/* plyr fix */
.plyr:-moz-full-screen video {
    max-height: initial;
}
.plyr:-webkit-full-screen video {
    max-height: initial;
}
.plyr:-ms-fullscreen video {
    max-height: initial;
}
.plyr:fullscreen video {
    max-height: initial;
}

a:link {
    color: var(--link);
}

a:visited {
    color: var(--link-visited);
}

input[type="text"],
input[type="search"] {
    background: var(--background);
    border: 1px solid var(--button-border);
    border-radius: 5px;
    padding: 0.4rem 0.4rem;
    font-size: 15px;
    color: var(--search-text);
}

input[type='search'] {
    border-bottom: 1px solid var(--button-border);
    border-top: 0px;
    border-left: 0px;
    border-right: 0px;
    border-radius: 0px;
}

header {
    display: grid;
    grid-gap: 4px;
    grid-template-areas:
        "home"
        "form"
        "playlist";
    grid-area: header;
}

.home {
    grid-area: home;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.form {
    display: grid;
    grid-gap: 4px;
    grid-template-areas:
        "search-box"
        "search-button"
        "dropdown";
    grid-area: form;
}

.search-box {
    grid-area: search-box;
}
.search-button {
    grid-area: search-button;

    cursor: pointer;
    padding-bottom: 6px;
    padding-left: .75em;
    padding-right: .75em;
    padding-top: 6px;
    text-align: center;
    white-space: nowrap;
    background-color: var(--buttom);
    border: 1px solid var(--button-border);
    color: var(--buttom-text);
    border-radius: 5px;
}
.search-button:hover {
    background-color: var(--buttom-hover);
}

.dropdown {
    display: grid;
    grid-gap: 1px;
    grid-template-areas:
        "dropdown-label"
        "dropdown-content";
    grid-area: dropdown;
    z-index: 1;
}
.dropdown-label {
    grid-area: dropdown-label;

    padding-bottom: 6px;
    padding-left: .75em;
    padding-right: .75em;
    padding-top: 6px;
    text-align: center;
    white-space: nowrap;
    background-color: var(--buttom);
    border: 1px solid var(--button-border);
    color: var(--buttom-text);
    border-radius: 5px;
}
.dropdown-label:hover {
    background-color: var(--buttom-hover);
}

.playlist {
    display: grid;
    grid-gap: 4px;
    grid-template-areas:
        "play-box"
        "play-hidden"
        "play-add"
        "play-clean";
    grid-area: playlist;
}
.play-box {
    grid-area: play-box;
}

.play-hidden {
    grid-area: play-hidden;
}

.play-add {
    grid-area: play-add;
    cursor: pointer;

    padding-bottom: 6px;
    padding-left: .75em;
    padding-right: .75em;
    padding-top: 6px;
    text-align: center;
    white-space: nowrap;
    background-color: var(--buttom);
    border: 1px solid var(--button-border);
    color: var(--buttom-text);
    border-radius: 5px;
}
.play-add:hover {
    background-color: var(--buttom-hover);
}

.play-clean {
    display: grid;
    grid-area: play-clean;
}

.play-clean > button {
    padding-bottom: 6px;
    padding-left: .75em;
    padding-right: .75em;
    padding-top: 6px;
    text-align: center;
    white-space: nowrap;
    background-color: var(--buttom);
    border: 1px solid var(--button-border);
    color: var(--buttom-text);
    border-radius: 5px;
}
.play-clean > button:hover {
    background-color: var(--buttom-hover);
}

/* ------------- Menu Mobile sin JS ---------------- */
/* input hidden */
.opt-box {
    display: none;
}
.dropdown-content {
    display: none;
    grid-area: dropdown-content;
}
label[for=options-toggle-cbox] {
    cursor: pointer;
    -webkit-touch-callout: none;
      -webkit-user-select: none;
       -khtml-user-select: none;
         -moz-user-select: none;
          -ms-user-select: none;
              user-select: none;
}

#options-toggle-cbox:checked ~ .dropdown-content {
    display: inline-grid;
    white-space: nowrap;
    padding-left: 1rem;
}
/*- ----------- End Menu Mobile sin JS ------------- */

.main {
    grid-area: main;
    margin: 0 auto;

    display: grid;
    grid-grap: 1px;
    grid-template-columns: 1fr;
    grid-template-areas:
        "sc-video"
        "sc-info";
}
.sc-video { grid-area: sc-video; }
.sc-info {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 1px;
    grid-template-areas:
        "video-info"
        "side-videos"
        "comments-area-outer";
    grid-area: sc-info;
}
.video-info {
    grid-area: video-info;

    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
        "v-title v-title"
        "v-uploaded v-views"
        "v-published v-likes-dislikes"
        "external-player-controls v-checkbox"
        "v-direct-link v-direct-link"
        "v-download v-download"
        "v-description v-description"
        "v-music-list v-music-list"
        "v-more-info v-more-info";
}
.v-title {
    grid-area: v-title;
    margin: 0px;
}
.v-uploaded { grid-area: v-uploaded; }
.v-views {
    grid-area: v-views;
    justify-self: end;
}
.v-published { grid-area: v-published; }
.v-likes-dislikes {
    grid-area: v-likes-dislikes;
    justify-self: end;
}
.external-player-controls {
    grid-area: external-player-controls;
}
.external-player-controls input.speed {
    width: 65px;
    text-align: center;
}
.v-checkbox {
    grid-area: v-checkbox;
    justify-self: end;
}
.v-direct-link {
    grid-area: v-direct-link;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}
.v-download { grid-area: v-download; }
.v-download > ul.download-dropdown-content {
    background: var(--secondary-background);
    padding-left: 0px;
}
.v-download > ul.download-dropdown-content > li.download-format {
    list-style: none;
    padding: 0.4rem 0;
    padding-left: 1rem;
}
.v-download > ul.download-dropdown-content > li.download-format a.download-link {
    text-decoration: none;
}

.v-description {
    grid-area: v-description;
    background-color: var(--secondary-background);
    margin-top: 0.4rem;
    white-space: pre-wrap;
    overflow: hidden;
    text-overflow: ellipsis;
    word-wrap: break-word;
    padding: 5px;
}

.v-music-list {
    grid-area: v-music-list;
    padding-bottom: 1rem;
}
.v-music-list table,th,td{
    border: 1px solid;
}
.v-music-list th,td{
    padding-left:4px;
    padding-right:5px;
}
.v-music-list caption{
    text-align:left;
    font-weight:bold;
    margin-bottom:5px;
}

.v-more-info {
    grid-area: v-more-info;
}
.v-more-info > .more-info-content {
    background-color: var(--secondary-background);
    padding: 5px;
}

.side-videos { grid-area: side-videos; }

.side-videos .related-autoplay {
    display: grid;
    grid-template-columns: repeat(2, auto);
    justify-content: start;
    grid-column-gap: 0.5rem;
    align-items: center;
}

/* playlist items */
.side-videos .site-playlist {
    border-style: solid;
    border-width: 2px;
    border-color: var(--secondary-focus);
    margin-bottom: 1rem;
}

.side-videos .site-playlist .playlist-header {
    background-color: var(--secondary-background);
    padding: 1rem;
    border-bottom-style: solid;
    border-bottom-width: 2px;
    border-bottom-color: var(--secondary-focus);
}

.side-videos .site-playlist .playlist-header h3 {
    margin: 0px;
    padding: 0px;
}

.side-videos .site-playlist .playlist-header .playlist-metadata {
    list-style: none;
    display: grid;
    justify-content: start;
    padding: 0;
    margin: 0px;
    grid-template-columns: repeat(3, auto);
    grid-column-gap: 1rem;
}

.side-videos .site-playlist .playlist-videos {
    display: grid;
    grid-row-gap: 1rem;
    height: 300px;
    overflow-y: scroll;
    padding-top: 1rem;
}

.side-videos .site-playlist .playlist-videos article.item-box {
    padding-left: 1rem;
}
/* /playlist items */

.comments-area-outer { grid-area: comments-area-outer; }

.related-videos-inner {
    padding-top: 10px;
    display: grid;
    grid-row-gap: 1rem;
}

.item-box {
    display: grid;
    grid-template-columns: 1.9fr 0.1fr;
    grid-template-rows: 1fr;
    grid-gap: 1px;
    grid-template-areas:
        "item-video item-checkbox";
}

.item-video {
    grid-area: item-video;

    display: grid;
    grid-template-columns: auto;
    grid-template-rows: repeat(4, auto);
    grid-row-gap: 0.4rem;
    grid-template-areas:
        "thumbnail-box"
        "info-box";
    align-items: center;

    font-size: 0.7rem;
}

.item-video a {
    text-decoration: none;
    cursor: pointer;
}

.thumbnail-box {
    grid-area: thumbnail-box;
    position: relative;
}

.thumbnail {
    padding: 28.125%;
    position: relative;
    box-sizing: border-box;
}

.thumbnail-img {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    object-fit: cover;
    background-color: var(--thumb-background);
}

.length {
    position: absolute;
    background-color: rgba(35, 35, 35, 0.75);
    color: #fff;
    border-radius: 2px;
    padding: 2px;
    font-size: 16px;
    right: 0.25em;
    bottom: -0.75em;
}

.info-box {
      grid-area: info-box;
      display: grid;
      grid-template-columns: 1fr;
      grid-template-rows: auto auto auto auto auto;
      grid-gap: 1px;
      grid-template-areas:
          "."
          "."
          "."
          "."
          ".";
}

.title {
    font-size: 0.8rem;
    margin: 0px;
    font-weight: normal;
    overflow: hidden;
    text-overflow: ellipsis;
}

.info-box address {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.thumbnail-info {
    background-color: var(--time-background);
    color: #fff;
    padding: 2px 5px;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 12px;
    position: absolute;
    right: 0;
    bottom: .2rem;
}

.item-checkbox {
    grid-area: item-checkbox;
    justify-self: start;
    align-self: center;
    min-width: 30px;
    margin: 0px;
}

.stats {
    display: flex;
    justify-content: space-between;
}

/* comments */
.comments-area {
    display: grid;
    grid-row-gap: 0.5rem;
}

.comments {
    display: grid;
    grid-row-gap: 0.5rem;
}

.comment {
    display: grid;
    grid-template-columns: repeat(3, auto) 3fr;
    grid-template-rows: repeat(4, auto);
    grid-column-gap: 0.4rem;
    grid-template-areas:
        "author-avatar author-name permalink ."
        "author-avatar comment-text comment-text comment-text"
        ". comment-likes comment-likes comment-likes"
        ". button-row button-row button-row";
    background: var(--secondary-background);
}

.author-avatar { grid-area: author-avatar; }
.author-name {
    grid-area: author-name;
    overflow: hidden;
    text-overflow: ellipsis;
}
.permalink { grid-area: permalink; }
.comment-text {
    grid-area: comment-text;
    overflow: hidden;
    text-overflow: ellipsis;
}
.comment-likes { grid-area: comment-likes; }
.button-row { grid-area: button-row; }

.more-comments {
    justify-self: center;
    margin-top: 10px;
    margin-bottom: 10px;
    background: var(--secondary-background);
    padding: 5px;

    /* disable text selection */
    -webkit-touch-callout: none;
      -webkit-user-select: none;
       -khtml-user-select: none;
         -moz-user-select: none;
          -ms-user-select: none;
              user-select: none;
}

.footer {
    grid-area: footer;
    display: grid;
    grid-template-columns: auto;
    align-items: center;
    justify-content: center;
    margin: auto;
    text-align: center;
}

.footer > p {
    text-align: center;
}

@media (min-width: 480px) {
    .item-video {
        font-size: 0.85rem;
    }
    .title {
        font-size: 1rem;
    }
}

@media (min-width: 992px) {
    body {
        display: grid;
        grid-template-columns: 0.3fr 2fr 1fr 0.3fr;
        grid-template-rows: auto 1fr auto;
        grid-template-areas:
            "header header header header"
            ".      main     main      ."
            "footer footer footer footer";
    }
    .form {
        display: grid;
        grid-gap: 1px;
        grid-template-columns: 1fr 1.4fr 0.3fr 1.3fr;
        grid-template-areas: ". search-box search-button dropdown";
        grid-area: form;
        position: relative;
    }
    .dropdown {
        display: grid;
        grid-gap: 1px;
        grid-template-columns: minmax(50px, 120px);
        grid-template-areas:
            "dropdown-label"
            "dropdown-content";
        grid-area: dropdown;

        background: var(--background);
        padding-right: 4rem;

        z-index: 1;
        position: absolute;
    }
    .playlist {
        display: grid;
        grid-gap: 1px;
        grid-template-columns: 1fr 1.4fr 0.3fr 1.3fr;
        grid-template-areas: ". play-box play-add play-clean";
        grid-area: playlist;
    }
    .play-clean {
        grid-template-columns: minmax(50px, 120px);
    }
    .play-clean > button {
        padding-bottom: 6px;
        padding-left: .75em;
        padding-right: .75em;
        padding-top: 6px;
        text-align: center;
        white-space: nowrap;
        background-color: var(--buttom);
        color: var(--buttom-text);
        border-radius: 5px;
        cursor: pointer;
    }

    .main {
        grid-area: main;
        margin: 0px;
    }

    .sc-info {
        display: grid;
        grid-template-columns: 3fr 1fr;
        grid-gap: 1px 40px;
        grid-template-areas:
            "video-info side-videos"
            "comments-area-outer side-videos"
            ".                   side-videos";
        grid-area: sc-info;
    }

    .footer {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        grid-column-gap: 2rem;
        align-items: center;
        justify-content: center;
        text-align: center;
        margin-top: 1rem;
        margin-bottom: 1rem;
    }
}