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CSS3+新属性有哪些

这篇文章主要介绍“CSS3+新属性有哪些”，在日常操作中，相信很多人在CSS3+新属性有哪些问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”CSS3+新属性有哪些”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

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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  "", "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  (deg, grad, rad, turn)

  • Time units (s, ms)

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。

  • Counter Styles Level 3

  • Device  Adaptation

  • Display  Module Level 3

  • Line Grid

  • Mobile Text  Size Adjustment

  • CSS  Variables

  • Box  Alignment

  • The "all" property

  • Exclusions  and Shapes

  • Generated Content  for Paged Media

  • Grid  Layout

  • Grid Template  Layout

  • Line Layout  Module

  • New features in Lists and Counters

  • Overflow  Module

  • New features in Paged Media

  • New features in CSS Sizing

  • Media Queries  Level 4

  • Selectors Level  4

  • ch  units

  • Viewport relative lengths

  • New resolution units

  • Compositing and Blending

  • New features in CSS speech

  • The unicode-range descriptor for @font-face

  • New features in CSS Images and Replaced Content

  • CSS Masking

到此，关于“CSS3+新属性有哪些”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！


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