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CSS
參考
CSS 參考
CSS 選擇器
CSS 功能
CSS 參考聽覺
CSS 網絡安全字體
CSS 動畫
CSS 單位
CSS PX-EM轉換器
CSS 顏色
CSS 顏色 值
CSS3 瀏覽器支持
CSS
屬性
align-content
align-items
align-self
all
animation
animation-delay
animation-direction
animation-duration
animation-fill-mode
animation-iteration-count
animation-name
animation-play-state
animation-timing-function
backface-visibility
background
background-attachment
background-blend-mode
background-clip
background-color
background-image
background-origin
background-position
background-repeat
background-size
border
border-bottom
border-bottom-color
border-bottom-left-radius
border-bottom-right-radius
border-bottom-style
border-bottom-width
border-collapse
border-color
border-image
border-image-outset
border-image-repeat
border-image-slice
border-image-source
border-image-width
border-left
border-left-color
border-left-style
border-left-width
border-radius
border-right
border-right-color
border-right-style
border-right-width
border-spacing
border-style
border-top
border-top-color
border-top-left-radius
border-top-right-radius
border-top-style
border-top-width
border-width
bottom
box-shadow
box-sizing
caption-side
clear
clip
color
column-count
column-fill
column-gap
column-rule
column-rule-color
column-rule-style
column-rule-width
column-span
column-width
columns
content
counter-increment
counter-reset
cursor
direction
display
empty-cells
filter
flex
flex-basis
flex-direction
flex-flow
flex-grow
flex-shrink
flex-wrap
float
font
@font-face
font-family
font-size
font-size-adjust
font-stretch
font-style
font-variant
font-weight
hanging-punctuation
height
justify-content
@keyframes
left
letter-spacing
line-height
list-style
list-style-image
list-style-position
list-style-type
margin
margin-bottom
margin-left
margin-right
margin-top
max-height
max-width
@media
min-height
min-width
nav-down
nav-index
nav-left
nav-right
nav-up
opacity
order
outline
outline-color
outline-offset
outline-style
outline-width
overflow
overflow-x
overflow-y
padding
padding-bottom
padding-left
padding-right
padding-top
page-break-after
page-break-before
page-break-inside
perspective
perspective-origin
position
quotes
resize
right
tab-size
table-layout
text-align
text-align-last
text-decoration
text-decoration-color
text-decoration-line
text-decoration-style
text-indent
text-justify
text-overflow
text-shadow
text-transform
top
transform
transform-origin
transform-style
transition
transition-delay
transition-duration
transition-property
transition-timing-function
unicode-bidi
vertical-align
visibility
white-space
width
word-break
word-spacing
word-wrap
z-index
CSS3
:root
Selector
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例
設置為HTML文檔的背景顏色:
:root {
background: #ff0000;
}
試一試»
定義和用法
的:根選擇文檔的根元素相匹配。
在HTML中,根元素始終是HTML元素。
版:
CSS3
瀏覽器支持
在表中的數字指定完全支持選擇第一瀏覽器的版本。
選擇
:root
4
9
3.5
3.2
9.6
CSS語法
:root {
css declarations
;
}
Demo
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