style.css

* {
    border-radius: 5px;
    box-sizing: border-box;

    margin: 0;
    padding: 0;
}

@keyframes opacitator {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

body {
    background-color: #111;
    color: white;

    display: flex;

    flex-direction: column;
    align-items: center;
    justify-content: center;

    min-height: 100vh;

    margin: 0 0 50px 0;

    font-family: sans-serif;
}

h1,
h2 {
    margin: 10px;
    width: 100%;
    max-width: 640px;
}

label {
    margin-top: 5px;
}

select {
    background: #111;
    border: #333 solid 1px;
    cursor: pointer;

    padding: 3px;

    color: white;
    font-size: 25px;
    font-weight: bold;
}

pre {
    background: #222;

    width: 100%;
    max-width: 640px;

    padding: 10px;

    color: greenyellow;
}

details {
    width: 100%;
    max-width: 640px;
    margin: 10px 0;
}

details[open] summary~* {
    animation: opacitator .5s ease-in-out;
}

footer {
    position: fixed;
    bottom: 0;
    right: 10px;
    font-size: 65px;
}

.the-cassette {
    text-decoration: none;
}

.cassetator-hero {
    all: unset;

    cursor: pointer;
}

.cassettator.video-js {
    border-radius: 5px;
    box-shadow: #444 0 0 8px;

    font-size: 15px;

    width: 100%;
    max-width: 640px;

    height: 360px;
}

.video-js.vjs-big-play-centered .vjs-big-play-button {
    border: none;
    background-color: #222a;
    box-shadow: 0px 0px 4px #000;

    height: 1.5em;
    width: 1.5em;

    margin-left: -.75em;

    line-height: 1.5em;
}

.video-js.vjs-big-play-centered:hover .vjs-big-play-button {
    background-color: #333a;
}

.video-js.vjs-big-play-centered .vjs-control-bar {
    background: #222a;

    width: calc(100% - 20px);

    left: 10px;
    right: 10px;
    bottom: 10px;
}

.cassettator .vjs-menu-button-popup .vjs-menu .vjs-menu-content {
    background-color: #222e;
}

.cassettator .vjs-menu li.vjs-menu-item:focus,
.cassettator .vjs-menu li.vjs-menu-item:hover,
.cassettator .js-focus-visible .vjs-menu li.vjs-menu-item:hover {
    background-color: #555a;
    color: white;
}

.cassettator.video-js .vjs-error-display {
    display: flex;
    align-items: center;
    padding: 20px 24px;
    flex-direction: row;
    justify-content: center;
}

.cassettator.video-js .vjs-error-display:before {
    content: "X";

    position: initial;

    border: solid 3px white;
    border-radius: 50%;

    width: 1.4em;

    margin: 0;
    padding: .2em;

    color: white;
    line-height: 1;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 2.5em;
    font-weight: bold;
    text-align: center;
    text-shadow: none;
}

.cassettator .vjs-modal-dialog.vjs-text-track-settings {
    background: none;
    background-color: #000d;

    height: 100%;
}

.cassettator .vjs-text-track-settings fieldset {
    display: flex;
}

.cassettator .vjs-track-setting>select {
    margin-right: 1em;
    margin-bottom: 0;
    font-size: 1em;
}

.cassettator .vjs-text-track-settings fieldset span>select {
    font-size: 1em;
}

.cassettator .vjs-track-settings-controls button {
    background: #111;
    border-radius: 5px;

    padding: 5px 10px;

    color: #fff;
}

.cassettator .vjs-track-settings-controls button:hover {
    background: #fff;

    color: #111;
}

.cassettator .vjs-menu .vjs-menu-content {
    padding: 5px;
}

.cassettator .vjs-menu li {
    padding: 0.2em;
    font-size: 1em;
    text-align: left;
    border-bottom: 1px dotted darkgray;
}

.cassettator .vjs-menu li:last-child {
    border-bottom: none;
}

.cassettator .vjs-menu li.vjs-menu-title {
    border-bottom: none;
}

.cassettator .vjs-menu-item.vjs-texttrack-settings {
    border-bottom: solid 1px darkgray;

    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.vjs-error .vjs-error-display .vjs-modal-dialog-content {
    height: auto;
    width: auto;
    position: initial;
    margin: 0 0 0 1em;
    padding: 0;
}

.resource {
    display: flex;

    width: 100%;
    max-width: 640px;

    margin-top: 5px;
}

.resource__url {
    border: none;
    border-radius: 5px 0 0 5px;

    width: 100%;

    padding: 10px;
}

.resource__mime-type {
    border-radius: 0;
    font-size: 1em;
    width: 100px;
    padding-left: 5px;
    background: #333;
}

.resource__submit {
    background: #333;
    border: none;
    border-radius: 0 5px 5px 0;
    cursor: pointer;

    width: 100px;
    height: 36px;

    color: white;
    font-weight: bold;
    font-size: 15px;
    text-transform: capitalize;
}

.drm__checkbox {
    margin: 10px 0;
    display: inline-block;
}

.drm__vendors {
    display: none;
}

.drm__vendors--show {
    display: flex;
    flex-direction: column;
}

.drm__certificate-label,
.drm__license-label {
    display: flex;
    flex-direction: column;

    margin: 10px 0;
}

.drm__vendors input[type="text"] {
    border: none;

    margin-top: 5px;
    padding: 10px;
}

.hide {
    display: none;
}

.ko {
    color: coral;
}