styles.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 13px;
}

body {
  font-family: 'Times New Roman', Times, sans-serif;
}

p {
  font-size: 1.6rem;
  line-height: 1.5;
}

img {
  width: 100%;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

body {
  background: darkgrey;
}

.box {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.music {
  position: relative;
  background: white;
  width: 25rem;
  border-radius: 5px;
  padding: 1rem;
  overflow: hidden;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.header .ph-bold {
  font-size: 2rem;
}

.ph-list {
  cursor: pointer;
}

.header h2 {
  font-size: 1.6rem;
  font-weight: 400;
}

.details {
  margin: 2rem 0;
  text-align: center;
}

.details img {
  width: 70%;
  border: 3px solid pink;
  margin-bottom: 1rem;
}

.details .artist {
  font-size: 1.2rem;
  font-weight: 600;
  color: brown;
}

.controls {
  background: black;
  padding: 2rem 1rem;
  border-radius: 5rem 5rem 0 0;
}

.song-timer {
  color: white;
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin: 1rem 0;
}

input[type="range"] {
  appearance: none;
  width: 50%;
  outline: none;
  height: 2px;
  margin: 0 10%;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  height: 2rem;
  width: 2rem;
  background: aqua;
  border-radius: 50%;
  cursor: pointer;
}

.duration input[type="range"] {
  width: 80%;
}

.buttons {
  text-align: center;
  margin: 2rem auto;
  width: 60%;
  padding: 5px 0;
  background: white;
  border-radius: 5px;
}

.buttons > * {
  border: none;
  outline: none;
  background: white;
  padding: 1rem;
  cursor: pointer;
  color: dark-grey;
}

.play {
  background: #2974ff;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  color: white;
}

.play-all {
  display: block;
  margin: 0 auto;
  padding: 3px;
  cursor: pointer;
  border: none;
  border-radius: 3px;
}

.volume input[type="range"] {
  margin: 0;
}

.volume {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 2rem 0 1rem 0;
}
.volume p {
  background: #2974ff;
  color: white;
  font-size: 1.4rem;
  height: 2rem;
  padding: 0 3px;
  margin-right: 8px;
}

.volume i {
  background: orangered;
  color: white;
  font-size: 1.2rem;
  height: 2rem;
  padding: 0 3px;
  margin-right: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.music-playlist {
  position: absolute;
  top: 0;
  left: 0;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.9);
  width: 100%;
  height: 100%;
  transform: translateX(-100%);
  transition: all 0.5s;
}

.playlist-header {
  color: white;
  padding: 5px 0;
  border-bottom: 1px solid grey;
}

.playlist-header .ph-x {
  cursor: pointer;
}
.playlist-div {
  width: 100%;
  height: 80vh;
  overflow-y: auto;
}

.playlist-div::-webkit-scrollbar {
  height: 5px;
  width: 4px;
  border: 1px solid #d5d5d5;
  background: #d5d5d5;
}

.playlist-div::-webkit-scrollbar-track {
  --webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
}

.playlist-div::-webkit-scrollbar-thumb {
  background-color: pink;
  outline: 1px solid #eee;
}

.playlist {
  display: flex;
  align-items: center;
  color: white;
}

.song-index {
  font-size: 1.4rem;
  margin-right: 5px;
}

.playlist p {
  width: 90%;
  font-size: 1.4rem;
  border-bottom: 1px solid grey;
  padding: 5px 0;
  cursor: pointer;
}