outlinewidth

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。,2021年8月12日—Theoutline-widthCSSpropertyspecifiesthethicknessofanelement'soutline.What'sanoutline?Anoutlineisalinethatisdrawnaround ...,2023年2月20日—TheCSSoutline-widthpropertysetsthethicknessofanelement'soutline.Anoutlineisalinethatisdrawnar...

參考資訊如下
CSS Outline

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。

outline

2021年8月12日 — The outline-width CSS property specifies the thickness of an element's outline. What's an outline? An outline is a line that is drawn around ...

outline-width - CSS: Cascading Style Sheets

2023年2月20日 — The CSS outline-width property sets the thickness of an element's outline. An outline is a line that is drawn around an element, ...

CSS 2.1 快速導覽- 外框粗細outline

outline-width 性質(property) 為CSS 中用來設定外框的粗細，外框類似邊框，位於邊框外緣，有以下的關鍵字(keyword). thin; medium; thick. 舉例如下

外框寬度Outline Width

外框寬度Outline Width. Setting the thickness of an element's outline. This page is still under construction and some content may not be complete.

Outline Width

​. Setting the outline width. Use the outline-width} utilities to change the width of an element's outline. ... The default outline width is 3px .

CSS Outline Width

The outline-width property specifies the width of the outline, and can have one of the following values: thin (typically 1px) ...

CSS outline

Definition and Usage. An outline is a line that is drawn around elements, outside the borders, to make the element stand out. The outline-width specifies the ...