前端文摘:最全的 CSS2.1 和 CSS3+ 的区别一览

  大家都知道我们习惯性称作的 CSS3 对于 CSS2.1 有很多的修改和补充。抛开浏览器的兼容性问题,这篇文章把所有的变化整理到一篇文章中便于学习和查阅。尽管我尽量确保收录了所有的新特性,但是不能保证没有遗漏,欢迎大家留言。

新属性

  下面是 CSS3 新增的 CSS3 属性列表。 

  • animation (and eight associated longhand properties)
  • background-clip
  • background-origin
  • background-size
  • border-radius (and four associated longhand properties)
  • border-image (and six associated longhand properties)
  • box-decoration-break
  • box-shadow
  • box-sizing
  • columns (and thirteen associated multi-column properties)
  • clear-after
  • flex (and eleven associated flexbox properties)
  • font-stretch
  • font-size-adjust
  • font-synthesis
  • font-kerning
  • font-variant-caps
  • hanging-punctuation
  • hyphens
  • icon
  • image-resolution
  • image-orientation
  • line-break
  • object-fit
  • object-position
  • opacity
  • outline-offset
  • overflow-wrap / word-wrap
  • backface-visibility
  • perspective
  • perspective-origin
  • pointer-events (for HTML)
  • resize
  • tab-size
  • text-align-last
  • text-decoration-line
  • text-decoration-skip
  • text-decoration-position
  • text-decoration-style
  • text-emphasis (and three associated properties)
  • text-justify
  • text-orientation
  • text-overflow
  • transform
  • transform-style
  • text-shadow
  • transition (and four associated longhand properties)
  • word-break
  • word-spacing
  • writing-mode

新的值

  在 CSS3 中为 CSS2.1 新增的取值,下面是每个属性新值的列表。

  • Value “local” for the background-attachment property
  • Value "rgba()" for any property that accepts a color value
  • Value "hsl()" for any property that accepts a color value
  • Value "hsla()" for any property that accepts a color value
  • Value "currentColor" for any property that accepts a color value
  • Value "inset()" for the clip property
  • Value "linear-gradient()" for any property that accepts an image value
  • Value "radial-gradient()" for any property that accepts an image value
  • Value "repeating-linear-gradient()" for any property that accepts an image value
  • Value "repeating-radial-gradient()" for any property that accepts an image value
  • Value "image()" for any property that accepts an image value
  • Multiple comma-separated images for any property that accepts an image value
  • Multiple comma-separated background-related values to match multiple background image declarations
  • Value "center" for the position property
  • Value "page" for the position property
  • Value "space" for the background-repeat property
  • Value "round" for the background-repeat property
  • 15 new values for the cursor property
  • Values "flex" and "inline-flex" for the display property
  • Values "all-small-caps", "petite-caps", "all-petite-caps", "titling-caps", and "unicase" for the font-variant property
  • Multiple, space-separated values for the letter-spacing property
  • New values for the text-align property, including "<string>", "match-parent", "start", "end", and "start end"
  • text-decoration is now a shorthand property
  • Keywords "hanging" and "each-line" declared along with length or percentage values for the tfext-indent property
  • Value "full-width" for the text-transform property
  • rem units for lengths
  • calc() units for lengths
  • toggle() units
  • Angle units (deggradradturn)
  • Time units (sms)

新选择器

  下面是 CSS3 中新增的选择器。

  • Substring matching attribute selectors ([att^=val][att$=val][att*=val])
  • :target pseudo-class
  • New pseudo-classes: :enabled:disabled:checked, and :indeterminate
  • :root pseudo-class
  • New expression-based structural pseudo-classes: :nth-child():nth-last-child():nth-of-type():nth-last-of-type()
  • Other new structural pseudo-classes: :last-child:first-of-type:last-of-type:only-child:only-of-type:empty
  • The negation pseudo-class :not()
  • Four pseudo-elements with double-colon syntax (::first-line::first-letter,::before::after)
  • The following-sibling combinator (p ~ img)
  • ::selection pseudo-class (removed from the spec, but everyone uses it)

其它新特性

  其它 CSS2.1 没有包含的特性。

  • @font-face
  • Media Queries
  • Keyframe animations using @keyframes
  • Conditional styles using @supports
  • Namespacing using @namespace
  • Regions
  • Filters

仍在变化中的特性

  上面的列表并不详尽,还有很多仍然在发展中的规范,并没有太多的浏览器支持,下面是这些新模块的列表。

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本文链接:前端文摘:史上最全的 CSS2.1 和 CSS3+ 的区别一览

编译来源:梦想天空 ◆ 关注Web前端开发技术 ◆ 分享网页设计资源

posted @ 2013-02-21 21:13 梦想天空(山边小溪) 阅读(...) 评论(...) 编辑 收藏