她可以设定字体、颜色、大小、以及包括边框及背景效果。

It says what fonts, colours, sizes and effects to use including borders and backgrounds.

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返回，用像素，来表示的元素宽度，这个宽度不包括边框和状态条那些东东。

Returns the width of the element, in pixels. This width does not take into account any margin, border, scroll bar, or padding that might have been applied to the element.

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侧边导航栏，包括背景和边框

Side navigation, including background and border

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