Beispiel:CSS3 border-radius-3.html
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<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0;" />
<link rel="stylesheet" media="screen" href="./Beispiel:SELFHTML-Beispiel-Grundlayout.css" />
<title>border-radius - 3</title>
<style>
div {
border: 3px solid red;
padding: 2em;
width: 10em;
float: left;
margin: 1em;
}
#rund {
border-radius: 50%;
width: 6em;
height: 6em;
}
#rund8 {
border-radius: 50%;
}
#rund9 {
border: 0;
}
#rund9::after {
content:'';
height: 0;
width: 0;
border: 5em solid transparent;
border-bottom: 5em solid red;
border-radius: 50%;
}
</style>
</head>
<body>
<h1>Verwendung von <code>border-radius</code></h1>
<main>
<h2>geometrische Formen</h2>
<div id="rund">Kreis</div>
<div id="rund8">Oval</div>
<div id="rund9">Kegel</div>
</main>
</body>
</html>