style.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat&display=swap');
* {
  font-family: Montserrat;
}
html,
body {
  margin: 0;
  padding: 0;
}
body{
    min-height: 100vh;
    background-color: #000000;
}
.container{
    display: flex;
    justify-content: center;
    padding-top: 8em;
}
.main-content{
    background-color: grey;
    padding: 1em;
    border-radius: 10%;
}
#button-section{
    display: flex;
    flex-direction: column;
    align-items: center;
}
#fav-section{
    display: flex;
    flex-direction: column;
    align-items: center;
}
#fav-list {
  width: 15em;
  height: 10em;
  line-height: 2em;
  padding: 0;
  margin: 0;
  overflow:auto;
  overflow-y: visible;
  background-color: #FFF8E5;
}
ul {
  list-style-type: none;
}
#liste {
  display: flex;
  /* text-align: center; */
  justify-content: center;
  border: 1px solid black;
  margin: 10px;
  width: 100px;
  padding: 5px;
}
button {
  width: 10em;
}
span{
  color: white;
}
#fav-list::-webkit-scrollbar {
  -webkit-appearance: none;
}

#fav-list::-webkit-scrollbar:vertical {
  width: 11px;
}

#fav-list::-webkit-scrollbar-thumb {
  border-radius: 8px;
  border: 2px solid white; /* should match background, can't be transparent */
  background-color: rgba(0, 0, 0, .5);
}