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提示和注释. outline是围绕元素。它是围绕元素的边距。但是，它是来自不同的边框属性。 outline不是元素尺寸的一部分，因此元素的宽度和高度属性不包含轮廓的宽度。

The outline-style CSS property specifies the style of an element's outline. What's an outline? An outline is a line that is drawn around ...

The outline CSS shorthand property sets most of the outline properties in a single declaration. Outline-style · Outline-offset · Outline-color · Outline-width

The outline-style CSS property sets the style of an element's outline. An outline is a line that is drawn around an element, outside the border ... Try it · Syntax · Examples

了解了 border 與 outline 的語法規則後，接著來細部的了解一下，實際上這兩個屬性都屬於CSS 簡寫的方式，就像是我們之前介紹過的 background 一樣，這屬性是屬於多個屬性 ...

輪廓是一種會出現在元素「邊框外緣」的一種「裝飾線條」，具有不佔空間又不受限矩形的特性，這篇教學會介紹控制輪廓樣式的outline、outline-style、outline-width 和outline- ... outline 輪廓( 縮寫格式) · outline-style 輪廓樣式 · outline-color 輪廓顏色

Use the outline-hidden utility to hide the default browser outline on focused elements, while still preserving the outline in forced colors mode.

定义和用法. outline-style 属性用于设置元素的整个轮廓的样式。样式不能是none，否则轮廓不会出现。 outline （轮廓）是绘制于元素周围的一条线，位于边框边缘的外围，可起 ...

An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline-style property specifies ...

An outline is a line that is drawn around elements, OUTSIDE the borders, to make the element stand out. CSS has the following outline properties.