轮廓(outline)是绘制于元素周围的一条线,位于边框边缘的外围,可起到突出元素的作用。
轮廓(outline)属性指定元素轮廓的样式、颜色和宽度。
border:1px solid red;outline-style:dotted;outline-color:#00ff00;
<!DOCTYPE html><html><head><meta charset="utf-8"> <title></title> <style>p {border:1px solid red;}p.dotted {outline-style:dotted;}p.dashed {outline-style:dashed;}p.solid {outline-style:solid;}p.double {outline-style:double;}p.groove {outline-style:groove;}p.ridge {outline-style:ridge;}p.inset {outline-style:inset;}p.outset {outline-style:outset;}</style></head><body><p class="dotted">点线轮廓</p><p class="dashed">虚线轮廓</p><p class="solid">实线轮廓</p><p class="double">双线轮廓</p><p class="groove">凹槽轮廓</p><p class="ridge">垄状轮廓</p><p class="inset">嵌入轮廓</p><p class="outset">外凸轮廓</p><p><b>注意:</b> 如果只有一个 !DOCTYPE 指定 IE 8 支持 outline 属性。</p></body></html>
p.one{ border:1px solid red; outline-style:solid; outline-width:thin;}p.two{ border:1px solid red; outline-style:dotted; outline-width:3px;}</style></head><body><p class="one">This is some text in a paragraph.</p><p class="two">This is some text in a paragraph.</p>
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