W3School TIY Editor
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<!DOCTYPE html> <html> <head> <style> #grad1 { height: 150px; width: 150px; background-image: radial-gradient(closest-side at 60% 55%,blue,green,yellow,black); } #grad2 { height: 150px; width: 150px; background-image: radial-gradient(farthest-side at 60% 55%,blue,green,yellow,black); } #grad3 { height: 150px; width: 150px; background-image: radial-gradient(closest-corner at 60% 55%,blue,green,yellow,black); } #grad4 { height: 150px; width: 150px; background-image: radial-gradient(farthest-corner at 60% 55%,blue,green,yellow,black); } </style> </head> <body> <h1>径向渐变-使用不同的 size 关键字</h1> <p><strong>closest-side:</strong></p> <div id="grad1"></div> <p><strong>farthest-side:</strong></p> <div id="grad2"></div> <p><strong>closest-corner:</strong></p> <div id="grad3"></div> <p><strong>farthest-corner (this is default):</strong></p> <div id="grad4"></div> <p><b>注释：</b>Internet Explorer 9 以及更早的版本不支持渐变。</p> </body> </html>