style.css

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

html,
body 
{
  height: 100%;
  width: 100%;
  background: #070614;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  justify-content: center;
}

#mov
{
  padding: 40px 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  outline: none;
  width: 300px;
  display: block;
  border: 10px solid;
  box-shadow: 0 0 100px #2f2d7a;
  --angle: 0deg;
  border-image: conic-gradient(from var(--angle), #009FFF, #ec2F4B) 1;
  animation: rotate linear infinite;
  animation-duration: 50s;
  font-family: 'Rubik', sans-serif;
  cursor: url('cursor.png'), auto;
}

@keyframes rotate
{
  to
  {
    --angle: 360deg;
  }
}

p
{
  font-size: 80px;
}

h3
{
  -webkit-text-stroke-color: rgb(248, 248, 248);
  -webkit-text-stroke-width: 0.5px;
  color: transparent;
  font-size: 70px;
  text-align: center;
  top: 60%;
  position: relative;
  font-family: 'Maven Pro', sans-serif;
}

.head
{
  color: white;
  font-family: 'Maven Pro', sans-serif;
  font-size: 2.8vh;
  top: 18vh;
  position: relative;
}

#slider
{
  -webkit-appearance: none;
  top: 3%;
  position: relative;
  margin-left: 30px;
  width: 20vh;
  box-shadow: 0 0 30px #7574a7;
  border-radius: 18px;
  background: url("https://wallpaperaccess.com/full/1853716.jpg");
  outline: none;
  cursor: pointer;
}

input[type=range]::-webkit-slider-thumb
{
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 15px;
  border: 2px solid #ffffff;
}

#slider:hover
{
  opacity: 10;
}

.music-upload {
  position: relative;
  overflow: hidden;
  display: inline-block;
  top: 65vh;
  box-shadow: 0 0 15px #7574a7;
}

.btn {
  outline: none;
  color: rgb(53, 53, 53);
  background-color: rgb(255, 255, 255);
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 20px;
  font-weight: bold;
  border: 4px solid;
  border-image: conic-gradient(from var(--angle), #009FFF, #ec2F4B) 1;
  animation: rotate linear infinite;
  animation-duration: 5s;
  font-family: 'Rubik', sans-serif;
  cursor: pointer;
}

.music-upload input[type=file] {
  font-size: 100px;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
}