lovecoding
/
web0331


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border-width: 10px;
            border-style: solid;
            position: absolute;
        }
        div::after {
            content: "";
            width: 200px;
            height: 200px;
            border-radius: 50%;
            position: absolute;
            top: -10px;
            left: -10px;
        }
        #red {
            border-color: red;
            top: 0;
            left: 0;
        }
        #red::after {
            z-index: 999;
            border-width: 10px;
            border-style: solid;
            border-color: transparent;
            border-right-color:  red;
        }
        #yellow {
            border-color: yellow;
            top: 0;
            left: 230px;
        }
        #yellow::after {
            border: 10px solid #ff0;
            border-bottom-color:  transparent;
            z-index: 888;
        }
        #blue {
            border-color: blue;
            top: 0;
            left: 460px;
        }
        #blue::after {
            border: 10px solid blue;
        }
        #green {
            border-color: green;
            top: 120px;
            left: 110px;
        }
        /* #green::after {
            border: 10px solid green;

        } */
        #blue::after {
            border: 10px solid blue;
        }
        #black {
            border-color: black;
            top: 120px;
            left: 360px;
        }
    </style>
</head>
<body>
        <div id="red"></div>
        <div id="yellow"></div>
        <div id="blue"></div>
        <div id="green"></div>
        <div id="black"></div>
</body>
</html>