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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                邊框屬性就是設置一個盒子的邊框線的具體特性。 邊框線的特性有3個: * border-style: 線型,屬性值通常有:solid(實線), dashed(虛線), dotted(點線) * border-width: 線的粗細,長度單位,比如1px * border-color: 線的顏色,顏色值,比如red, rgb(255, 0, 0), #FF3366 又由于一個盒子的邊框有4個方位(top, right, bottom, left),則總體上就至少有12個邊框屬性,形式為: border-方位-特性,比如: border-top-style, border-top-width,border-top-color, border-right-width, border-left-color,等等。 示例: ``` border-top-style: solid; border-right-color: #FF0000; border-left-width: 2px; ``` 實際上,還有若干個“單邊綜合屬性”,比如: border-top:一次性設置上邊框線的特性; border-left:一次性設置左邊框線的特性; .... 示例: ``` border-top: 1px solid blue; border-right: 5px dotted green; ``` 應用中,最常用的其實是“border”這一個最大的綜合屬性,它一次性設置4個邊的3個特性,比如: ``` border: 1px solid red; //表示4變的邊框線都是寬度為1px的紅色實線。 ``` 演示: 以下其實是兩個a連接: ![](https://img.kancloud.cn/29/c6/29c64e20f267fc13a6b2093d2b9de7ea_146x48.png) ![](https://img.kancloud.cn/15/d9/15d95176c48439608ae2b4343e94f91c_482x362.png)
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