HOW DO I ADD GIFS UNDER THE MP3??

Sorry!! I even forgot how to do mine TwT

.player::before {
content: "";
bottom: 20px;
display: block;
position: relative;
width: calc(40% -20px);
height: 350px;
max-width: 390px;
background-position: 0 0;
background-size: 100% 100%;
background-image: url();
padding-top: 5px;
}