<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
width: 200px;
height: 200px;
background: brown;
border: 50px solid greenyellow;
border-radius: 50%;
}
</style>
</head>
<body>
<div></div>
</body>
</html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> .father{ width: 200px; height: 200px; background: greenyellow; border-radius: 50%; } .son{ width: 100px; height: 100px; background: brown; border-radius: 50%; position: relative; top: 50px; left: 50px; /* position: relative; top: 50px; left: 50px; */ } </style> </head> <body> <div class="father"> <div class="son"></div> </div> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> .father{ width: 200px; height: 200px; background: greenyellow; border-radius: 50%; position: absolute; /* position: fixed; float: left/right; overflow: hidden; display: inline-block; */ } .son{ width: 100px; height: 100px; background: brown; border-radius: 50%; margin: 50px; } </style> </head> <body> <div class="father"> <div class="son"></div> </div> </body> </html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
width: 200px;
height: 200px;
background-color: greenyellow;
border-radius: 50%;
}
div::before{
content: "";
display: block;
width: 100px;
height: 100px;
border-radius: 50%;
background-color: brown;
position: relative;
top: 50px;
left: 50px;
/* position: absolute;
margin: 50px; */
}
</style>
</head>
<body>
<div></div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
width: 200px;
height: 200px;
background-color: greenyellow;
border-radius: 50%;
box-shadow: 0 0 0 50px brown inset;
}
</style>
</head>
<body>
<div></div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
div{
width: 200px;
height: 200px;
border-radius: 50%;
background: -webkit-radial-gradient( circle closest-side,greenyellow 50%,brown 50%);
}
</style>
</head>
<body>
<div></div>
</body>
</html>
原文:https://www.cnblogs.com/Rooney10/p/12984841.html