JSFiddle - React, Tailwind, and code Playground
HTML
<div id="wrapper">
<div id="sea">
<img src="ship.png" alt="ship" width="128" height="128"/>
</div>
</div>
CSS
#wrapper{position:relative;top:50px;width:700px;height:320px;
margin:0 auto;background:white;border-radius:10px;}
#sea{position:relative;background:#2875DE;width:700px;height:170px;border-radius:10px;top:190px;}
#sea img{
position:absolute;
left:480px;top:-20px;
animation:myship 10s;
-moz-animation:myship 10s; /* Firefox */
-webkit-animation:myship 10s; /* Safari and Chrome */
}
@keyframes myship
{
from {left: 480px;}
to{left:20px;}
}
@-moz-keyframes myship
{
from {left: 480px;}
to{left:20px;}
}
@-webkit-keyframes myship
{
from {left: 480px;}
to{left:20px;}
}