How do you add those gifs at the start of your profile?

(Change image link)

<style>

body:before {

content: " ";

height: 100vh;

width: 100vw;

display: block;

position: fixed; 

top: 0; 

left: 0; 

z-index: 100;

background-image: url('https://media.tenor.com/8hkmmE3oxmwAAAAC/gerardway-gerardthesassqueen.gif');

background-size: cover;

background-repeat: no-repeat;

background-position:center;

animation: yourAnimation 3s ease 0s 1 normal forwards;

pointer-events: none;

}

@keyframes yourAnimation { 0.0%{ opacity: 1;} 75%{ opacity: 1; } 100%{ opacity: 0;} } 

</style>