<div></div>

<style> 
 div {
    width: 100px;
    height: 100px;
    background: red;
    position: relative;
    animation: mymove 5s infinite;
    animation-delay: -2s;
    -webkit-animation: mymove 5s infinite; 
    -webkit-animation-delay: -2s;

}
@-webkit-keyframes mymove {
    from {left: 0px;}
    to {left: 200px;}
}

@keyframes mymove {
    from {left: 0px;}
    to {left: 200px;}
}

</style>

My web error like this my web: u can see: **CSS Syntax** animation-delay: time | initial | inherit; **Cấu trúc**: ```` <div></div> <style> div { width: 100px; height: 100px; background: red; position: relative; animation: mymove 5s infinite; animation-delay: -2s; -webkit-animation: mymove 5s infinite; -webkit-animation-delay: -2s; } @-webkit-keyframes mymove { from {left: 0px;} to {left: 200px;} } @keyframes mymove { from {left: 0px;} to {left: 200px;} } </style> ````