The remainder (%) operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend....Skip to main content Skip to search Skip to select language Article...
The size CSS at-rule descriptor, used with the @page at-rule, defines the size and orientation of the box which is used to represent a page. Most of the time, this size corresponds to the target size of the printed page if applicable....Skip to main content Skip to search Skip to select language Article...
Learn about the AudioBuffer interface, including its constructor, properties, and methods, specifications and browser compatibility....Skip to main content Skip to search Skip to select language Article...
Learn about the ValidityState.typeMismatch property, including its type, code examples, specifications, and browser compatibility....Skip to main content Skip to search Skip to select language Article...
data-* 全局属性 是一类被称为自定义数据属性的属性，它赋予我们在所有 HTML 元素上嵌入自定义数据属性的能力，并可以通过脚本在 HTML 与 DOM 表现之间进行专有数据的交换。...Skip to main content Skip to search Skip to select language Article...
Explore how to create performant, fast-loading websites and enhance perceived performance....Skip to main content Skip to search Performance centers around...
The page-break-before CSS property adjusts page breaks before the current element....Skip to main content Skip to search Skip to select language Article...
The background-size CSS property lets you resize the background image of an element, overriding the default behavior of tiling the image at its full size by specifying the width and/or height of the image. By doing so, you can scale the image upward or downward as desired....Skip to main content Skip to search Skip to select language Article...
A backreference refers to the submatch of a previous capturing group and matches the same text as that group. For named capturing groups, you may prefer to use the named backreference syntax....Skip to main content Skip to search Skip to select language Article...
The @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your CSS when using multiple fonts....Skip to main content Skip to search Skip to select language Article...