style.css

/* CSS Reset start */
* {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
section {
  display: block;
}
/* CSS Reset end */

:root {
  --scale: 0.85;
}
@media (max-aspect-ratio: 1/1.5) {
  :root {
    --scale: 1.3;
  }
}

body {
  background-color: black;
}

#player {
  max-height: 0;
}

#tracklist {
  z-index: -1;
}

#cover_large_div {
  z-index: -1;
  background: rgba(0, 0, 0, 0.8);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#cover_large {
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.prevent-select {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

#tracklist > div {
  max-height: calc(var(--scale)*58px);
  position: relative;
  overflow: visible;
  border-radius: calc(var(--scale)*5px);
  padding: calc(var(--scale)*6px);
  padding-bottom: calc(var(--scale)*2px);
  margin: calc(var(--scale)*15px);
  border: calc(var(--scale)*3px) solid rgb(60, 60, 60);
  background-color: rgb(10, 10, 10);
}

#tracklist > div[playing="true"] {
  border: calc(var(--scale)*3px) solid rgb(20, 240, 240);
  background-color: rgb(30, 30, 30);
}

#tracklist > div[playing="false"] {
  border: calc(var(--scale)*3px) solid rgb(60, 60, 60);
  background-color: rgb(10, 10, 10);
}

#tracklist > div.hover:hover:not(.invalid-video) {
  border: calc(var(--scale)*3px) solid white;
  background-color: rgb(40, 40, 40);
}

div.invalid-video {
  background-color: black;
}

img.invalid-video {
  opacity: 0.3;
}

.cover-placeholder {
  background-color: rgb(30, 30, 30);
  margin: calc(var(--scale)*2px);
  margin-bottom: calc(var(--scale)*6px);
  margin-right: calc(var(--scale)*10px);
  width: calc(var(--scale)*50px);
  height: calc(var(--scale)*50px);
  float: left;
}

img.cover-thumb {
  width: calc(var(--scale)*50px);
  float: left;
}

.cover-placeholder:hover {
  background-color: white;
}
img.cover-thumb:hover {
  cursor: pointer;
  opacity:0.75;
}

.info {
  max-width: 70%;
}  

.fade {
  -webkit-mask-image: linear-gradient(90deg, #000 70%, transparent);
  -moz-mask-image: linear-gradient(90deg, #000 70%, transparent);
  -ms-mask-image: linear-gradient(90deg, #000 70%, transparent);
  mask-image: linear-gradient(90deg, #000 70%, transparent);
}

span.index {
  font-weight: bold;
  font-family: 'Courier New', Courier, monospace;
}

h3:not(.invalid-video) > span.index {
  color:rgb(120, 120, 120);
}

h3.invalid-video, h4.invalid-video, p.invalid-video, span.invalid-video {
  color: rgb(50, 50, 50);
}

h3, p, ul, li {
  font-family: Helvetica, sans-serif;
  line-height: calc(var(--scale)*30px);
  position: relative;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  margin: 0;
}

h3 {
  font-weight: bold;
  font-size: calc(var(--scale)*24px);
  color: white;
}

h4 {
  font-weight: bold;
  font-family: 'Courier New', Courier, monospace;
  max-width: 100%;
  position: absolute;
  margin-right: calc(var(--scale)*8px);
  margin-top: calc(var(--scale)*2px);
  right: 0;
  top: calc(var(--scale)*3px);
  text-align: right;
  font-size: calc(var(--scale)*20px);
  color: rgb(125, 125, 125);
}

h5 {
  font-weight: bold;
  font-family: 'Courier New', Courier, monospace;
  max-width: 100%;
  position: absolute;
  margin-right: calc(var(--scale)*80px);
  margin-top: calc(var(--scale)*2px);
  right: 0;
  top: calc(var(--scale)*3px);
  text-align: right;
  font-size: calc(var(--scale)*20px);
  color: rgb(255, 255, 255);
  opacity: 5%;
}

div[playlist="true"] h5 {
  opacity: 60%;
}

p, ul {
  font-size: calc(var(--scale)*15px);
  color: rgb(200, 200, 200);
}

.material-symbols-outlined {
  transform-origin: bottom right;
  transform: scale(var(--scale));
  color: rgb(125, 125, 125);
  position: absolute;
  text-align: right;
  right: 0;
  bottom: 0;
  margin-right: calc(var(--scale)*4px);
  margin-bottom: calc(var(--scale)*1px);
}

.material-symbols-outlined:hover:not(.invalid-video) {
  color: rgb(225, 225, 225);
  cursor: pointer;
}

#readme {
  min-height: 98vh;
  position: relative;
}

#readme > p, ul {
  max-width: 100%;
  white-space: normal;
  text-align: justify;
  color: rgb(110, 110, 110);
  padding: calc(var(--scale)*6px);
  padding-top: 0;
  margin: calc(var(--scale)*10px);
  margin-top: 0;
}

ul {
  list-style: none;
}

li {
  max-width: 100%;
  white-space: normal;
}

#kb_controls {
  color: rgb(170, 170, 170);
}

#hidden_li {
  color: black;
}

#playlist_duration {
  top: auto;
  position: absolute;
  bottom: 0;
  left: 0;
}

#played_bar { 
  height: 2px;
  width: 0%; 
  background-color: rgb(20, 240, 240);
  opacity: 1;
  z-index: 50;
}

#played_bar_bg { 
  height: 2px; 
  position: fixed; 
  bottom: 0%;
  width: 100%; 
  background-color: #7d7d7d; 
  opacity: 1;
  z-index: 50;
  border-top: 1px solid black;
}

div.continuing::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: rotate(45deg) translateX(-50%) translateY(150%);
  width: calc(var(--scale)*7px);
  height: calc(var(--scale)*7px);
  z-index: -1;
  border: calc(var(--scale)*3px) solid rgb(60, 60, 60);
}