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<!DOCTYPE html> <html> <head> <style> #rcorners1 { border-radius: 25px; background: #73AD21; padding: 20px; width: 200px; height: 150px; } #rcorners2 { border-radius: 25px; border: 2px solid #73AD21; padding: 20px; width: 200px; height: 150px; } #rcorners3 { border-radius: 25px; background: url(/i/paper.jpg); background-position: left top; background-repeat: repeat; padding: 20px; width: 200px; height: 150px; } </style> </head> <body> <h1>border-radius 属性</h1> <p>拥有指定背景颜色的元素的圆角：</p> <p id="rcorners1">Rounded corners!</p> <p>带边框元素的圆角：</p> <p id="rcorners2">Rounded corners!</p> <p>拥有背景图片的元素的圆角：</p> <p id="rcorners3">Rounded corners!</p> </body> </html>