.box{
width: 100px;
height: 100px;
background-image: radial-gradient(200px at 100px 0px, #fff 100px, #000 100px);
}
width: 100px;
height: 100px;
background-image: radial-gradient(200px at 100px 0px, #fff 100px, #000 100px);
}
2016-07-14
已采纳回答 / 慕粉3462923
.box{ width: 100px; height: 100px; margin: 50px auto; background-image: radial-gradient(200px at 100px 0px, #fff 100px, #000 100px);}
2016-07-14