CSS 参考手册

CSS 参考手册 CSS 浏览器支持 CSS 选择器 CSS 函数 CSS 听觉 CSS Web 安全字体 CSS 动画相关属性 CSS 单位 CSS PX-EM 转换 CSS 颜色 CSS 颜色值 CSS 默认值 CSS 实体

CSS 属性

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-decoration-break box-shadow box-sizing break-after break-before break-inside caption-side caret-color @charset clear clip clip-path 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-feature-settings font-kerning font-size font-size-adjust font-stretch font-style font-variant font-variant-caps font-weight grid grid-area grid-auto-columns grid-auto-flow grid-auto-rows grid-column grid-column-end grid-column-gap grid-column-start grid-gap grid-row grid-row-end grid-row-gap grid-row-start grid-template grid-template-areas grid-template-columns grid-template-rows hanging-punctuation height hyphens @import isolation 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 mix-blend-mode object-fit object-position 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 pointer-events position quotes resize right scroll-behavior 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 user-select vertical-align visibility white-space width word-break word-spacing word-wrap writing-mode z-index




CSS 默认值参考手册

HTML 元素的 CSS 默认值

下表显示了所有 HTML 元素的默认 CSS 浏览器值。

元素 默认的 CSS 值 试一试
a:link color: (internal value);
text-decoration: underline;
cursor: auto;
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a:visited color: (internal value);
text-decoration: underline;
cursor: auto;
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a:link:active color: (internal value);
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a:visited:active color: (internal value);
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abbr None.
address display: block;
font-style: italic;
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area display: none;
article display: block;
aside display: block;
audio None.
b font-weight: bold; 试一试 »
base None.
bdi None.
bdo unicode-bidi: bidi-override;
blockquote display: block;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 40px;
margin-right: 40px;
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body display: block;
margin: 8px;
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body:focus outline: none; 试一试 »
br None.
button None
canvas None.
caption display: table-caption;
text-align: center;
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cite font-style: italic; 试一试 »
code font-family: monospace; 试一试 »
col display: table-column; 试一试 »
colgroup display: table-column-group 试一试 »
datalist display: none;
dd display: block;
margin-left: 40px;
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del text-decoration: line-through; 试一试 »
details display: block;
dfn font-style: italic; 试一试 »
dialog None.
div display: block; 试一试 »
dl display: block;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 0;
margin-right: 0;
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dt display: block; 试一试 »
em font-style: italic; 试一试 »
embed:focus outline: none;
fieldset display: block;
margin-left: 2px;
margin-right: 2px;
padding-top: 0.35em;
padding-bottom: 0.625em;
padding-left: 0.75em;
padding-right: 0.75em;
border: 2px groove (internal value);
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figcaption display: block;
figure display: block;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 40px;
margin-right: 40px;
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footer display: block;
form display: block;
margin-top: 0em;
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h1 display: block;
font-size: 2em;
margin-top: 0.67em;
margin-bottom: 0.67em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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h2 display: block;
font-size: 1.5em;
margin-top: 0.83em;
margin-bottom: 0.83em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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h3 display: block;
font-size: 1.17em;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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h4 display: block;
margin-top: 1.33em;
margin-bottom: 1.33em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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h5 display: block;
font-size: .83em;
margin-top: 1.67em;
margin-bottom: 1.67em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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h6 display: block;
font-size: .67em;
margin-top: 2.33em;
margin-bottom: 2.33em;
margin-left: 0;
margin-right: 0;
font-weight: bold;
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head display: none;
header display: block;
hr display: block;
margin-top: 0.5em;
margin-bottom: 0.5em;
margin-left: auto;
margin-right: auto;
border-style: inset;
border-width: 1px;
试一试 »
html display: block;
html:focus outline: none;
i font-style: italic; 试一试 »
iframe:focus outline: none;
iframe[seamless] display: block;
img display: inline-block; 试一试 »
input None.
ins text-decoration: underline; 试一试 »
kbd font-family: monospace; 试一试 »
label cursor: default; 试一试 »
legend display: block;
padding-left: 2px;
padding-right: 2px;
border: none;
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li display: list-item;
link display: none;
main None.
map display: inline;
mark background-color: yellow;
color: black;
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menu display: block;
list-style-type: disc;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 0;
margin-right: 0;
padding-left: 40px;
menuitem None.
meta None.
meter None.
nav display: block;
noscript None.
object:focus outline: none;
ol display: block;
list-style-type: decimal;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 0;
margin-right: 0;
padding-left: 40px;
试一试 »
optgroup None.
option None.
output display: inline;
p display: block;
margin-top: 1em;
margin-bottom: 1em;
margin-left: 0;
margin-right: 0;
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param display: none;
picture None.
pre display: block;
font-family: monospace;
white-space: pre;
margin: 1em 0;
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progress None.
q display: inline; 试一试 »
q::before content: open-quote; 试一试 »
q::after content: close-quote; 试一试 »
rp None.
rt line-height: normal;
ruby None.
s text-decoration: line-through; 试一试 »
samp font-family: monospace; 试一试 »
script display: none;
section display: block; 试一试 »
select None.
small font-size: smaller; 试一试 »
source None.
span None.
strike text-decoration: line-through; 试一试 »
strong font-weight: bold; 试一试 »
style display: none;
sub vertical-align: sub;
font-size: smaller;
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summary display: block;
sup vertical-align: super;
font-size: smaller;
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table display: table;
border-collapse: separate;
border-spacing: 2px;
border-color: gray;
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tbody display: table-row-group;
vertical-align: middle;
border-color: inherit;
td display: table-cell;
vertical-align: inherit;
template None.
textarea None.
tfoot display: table-footer-group;
vertical-align: middle;
border-color: inherit;
th display: table-cell;
vertical-align: inherit;
font-weight: bold;
text-align: center;
thead display: table-header-group;
vertical-align: middle;
border-color: inherit;
time None.
title display: none;
tr display: table-row;
vertical-align: inherit;
border-color: inherit;
track None.
u text-decoration: underline; 试一试 »
ul display: block;
list-style-type: disc;
margin-top: 1em;
margin-bottom: 1 em;
margin-left: 0;
margin-right: 0;
padding-left: 40px;
试一试 »
var font-style: italic; 试一试 »
video None.
wbr None.