Method: 1. Use the "width: inner circle diameter; height: inner circle diameter" style to set the div element to a square; 2. Use the "border-radius:50%" style to set the square to a circle ; 3. Add the "border: thickness value solid color value" style to the circular element to achieve a circular circle.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
How to set an annular circle in css3
In css, you can first create a square div element with equal width and height, and then use border-radius The attribute sets the square div into a circle, and finally uses the border attribute to add a border to the circular element.
The example is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
div{
width:200px;
height:200px;
border-radius:50%;
border:100px solid pink;
}
</style>
</head>
<body>
<div></div>
</body>
</html>Output result:
(Learning video sharing: css video tutorial)
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