<style> | |
div { | |
position: absolute; | |
top: 0; | |
left: 0; | |
width: 100px; | |
height: 100px; | |
background-color: black; | |
will-change: rotate; | |
rotate: 180deg; | |
} | |
div::after { | |
content: ""; | |
position: absolute; | |
left: 0; | |
top: 0; | |
width: 100%; | |
height: 50%; | |
background-color: gray; | |
} | |
</style> | |
<div></div> |