The background-origin CSS property sets the background's origin: from the border start, inside the border, or inside the padding.
The background-origin CSS property sets the background's origin: from the border start, inside the border, or inside the padding.
background将指定的背景属性设为明确给定的值,将没有指定的背景属性设为初始值。 初始值as each of the properties of the shorthand: background-image:none background-position:0% 0% background-size:auto auto background-repeat:repeat background-origin:padding-box ...
The background shorthand CSS property sets all background style properties at once, such as color, image, origin and size, or repeat method. Component properties not set in the background shorthand property value declaration are set to their default valu
The background-size CSS property sets the size of the element's background image. The image can be left to its natural size, stretched, or constrained to fit the available space.
The background-size CSS property sets the size of the element's background image. The image can be left to its natural size, stretched, or constrained to fit the available space.
A <percentage> value that scales the background image in the corresponding dimension to the specified percentage of the background positioning area, which is determined by the value of background-origin. The background positioning area is, by default, the area containing the content of the box ...
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The background-position CSS property sets the initial position for each background image. The position is relative to the position layer set by background-origin.
If there is an existing service worker available, the new version is installed in the background, but not yet activated — at this point it is called the worker in waiting. It is only activated when there are no longer any pages loaded that are still using the old service worker. As so...