CSS3 边框(Borders)_html/css_WEB-ITnose
CSS3 Borders
用CSS3,你可以创建圆角边框,添加阴影框,并作为边界的形象而不使用设计程序,如Photoshop。
在本章中,您将了解以下的边框属性:
border-radius
box-shadow
border-image
浏览器支持
Internet Explorer 9+ 支持 border-radius 和 box-shadow.
Firefox, Chrome, 和 Safari 支持所有最新的 border 属性.
注意: 前缀是-webkit-的Safari支持阴影边框。
前缀是-o-的Opera支持边框图像。
CSS3 圆角
在CSS2中添加圆角棘手。我们不得不在每个角落使用不同的图像。
在CSS3中,很容易创建圆角。
在CSS3中border-radius属性被用于创建圆角:
这是圆角边框!
div{border:2px solid;border-radius:25px;}
CSS3盒阴影
CSS3中的box-shadow属性被用来添加阴影:
div{box-shadow: 10px 10px 5px #888888;}
CSS3边界图片
有了CSS3的border-image属性,你可以使用图像创建一个边框:
border-image属性允许你指定一个图片作为边框! 用于创建上文边框的原始图像:
在div中使用图片创建边框:
在div中使用图片创建边框div{border-image:url(border.png) 30 30 round;-webkit-border-image:url(border.png) 30 30 round; /* Safari 5 and older */-o-border-image:url(border.png) 30 30 round; /* Opera */}
新边框属性
属性 | 说明 | CSS |
border-image | 设置所有边框图像的速记属性。 | 3 |
border-radius | 一个用于设置所有四个边框- *-半径属性的速记属性 | 3 |
box-shadow | 附加一个或多个下拉框的阴影 | 3 |

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