Loading screen

<style>

body:before{

content: " ";

height: 100vh;

width: 100vw;

display: block;

position: fixed; 

top: 0; 

left: 0; 

z-index: 100;

background-image: url(INSERT URL);

background-size: cover;

        background-position:center;

        background-color: black;

animation: yourAnimation 2s ease 0s 1 normal forwards;

pointer-events: none}

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

</style>