no-framework-video-player/src/app.css

A no framework video player.you can use it as long as your program is in javascript environment

:root {
  font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 24px;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

.card {
  padding: 2em;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}

.logo-loading {
  position: relative;
  width: 100px;
  height: 23px;
  overflow: hidden;
}
.logo {
  width: 100%;
  height: 100%;
  background: url(https://s.thsi.cn/cd/ths-frontend-hxmui-container/front/thsc-hxmui/1.11.0/img/logo_light.ed78645a.png)
    50%;
  background-size: cover;
}
.light {
  position: absolute;
  left: 0;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  width: 32px;
  height: 23px;
  background: url(data:image/png;base64,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)
    50%;
  background-size: cover;
  opacity: 0.6;
  -webkit-animation: move 0.8s ease-in-out infinite;
  animation: move 0.8s ease-in-out infinite;
}
@keyframes move {
  from {
    left: 0;
  }
  to {
    left: 100%;
  }
}