font
属性可以用来作为 font-style
, font-variant
, font-weight
, font-size
, line-height
和 font-family
属性的简写,或将元素的字体设置为系统字体。
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
与任何简写属性一样,任何未指定的值都将设置为其对应的初始值(可能覆盖先前使用非简写属性设置的值)。 虽然不能通过 font 直接设置,但是font-stretch
,font-size-adjust
和 font-kerning
也会重置为初始值。
可以将font
属性指定为单个关键字,它将选择系统字体,或者作为字体相关的属性的简写。
如果将 font
指定为系统关键字,则它必须是以下之一:caption
, icon
, menu
, message-box
, small-caption
, status-bar
。
如果 font
字体相关的属性的简写:
- 必须包含以下值:
- 可以选择性包含以下值:
font-style
, font-variant
和 font-weight
必须在 font-size
之前- 在 CSS 2.1 中
font-variant
只可以是 normal
和 small-caps
line-height
必须跟在 font-size
后面,由 "/" 分隔,例如 "16px/3
"font-family
必须最后指定
值
<'font-style'>
- 见
font-style
属性。 <'font-variant'>
- 见
font-variant
属性。 <'font-weight'>
- 见
font-weight
属性。 <'font-size'>
- 见
font-size
属性。 <'line-height'>
- 见
line-height
属性。 <'font-family'>
- 见
font-family
属性。 系统字体
caption
- 用于标题控件(如按钮,下拉列表等)的系统字体。
icon
- 用于标签图标的系统字体。
- 菜单中(如下拉菜单和菜单列表)使用的系统字体。
message-box
- 用于对话框的系统字体。
small-caption
- 用于小标题控件的系统字体。
status-bar
- 用于窗口状态栏的系统字体。
- 系统关键字前缀
- 浏览器经常会多实现几个带前缀的关键字;Gecko 实现了
-moz-window
, -moz-document
, -moz-desktop
, -moz-info
, -moz-dialog
, -moz-button
, -moz-pull-down-menu
, -moz-list
, 和 -moz-field
. 正式语法
[ [ <'font-style'> || <font-variant-css21> || <'font-weight'> || <'font-stretch'> ]? <'font-size'> [ / <'line-height'> ]? <'font-family'> ] | caption | icon | menu | message-box | small-caption | status-barwhere
<font-variant-css21> = [ normal | small-caps ]
/* Set the font size to 12px and the line height to 14px.
Set the font family to sans-serif */
p { font: 12px/14px sans-serif }
/* Set the font size to 80% of the parent element
or default value (if no parent element present).
Set the font family to sans-serif */
p { font: 80% sans-serif }
/* Set the font weight to bold,
the font-style to italic,
the font size to large,
and the font family to serif. */
p { font: bold italic large serif }
/* Use the same font as the status bar of the window */
p { font: status-bar }
HTML Content
<p>
Change the radio buttons below to see the generated shorthand and it's effect.
</p>
<form action="createShortHand()">
<div class="cf">
<div class="setPropCont">
font-style<br/>
<input type="radio" id="font-style-none" name="font_style" checked="" value="" onchange="setCss()"> <label for="font-style-none">none</label><br/>
<input type="radio" id="font-style-normal" name="font_style" value="normal" onchange="setCss()"> <label for="font-style-normal">normal</label><br/>
<input type="radio" id="font-style-italic" name="font_style" value="italic" onchange="setCss()"> <label for="font-style-italic">italic</label><br/>
<input type="radio" id="font-style-oblique" name="font_style" value="oblique" onchange="setCss()"> <label for="font-style-oblique">oblique</label>
</div>
<div class="setPropCont">
font-variant<br>
<input type="radio" id="font-variant-none" name="font_variant" checked="" value=" " onchange="setCss()"> <label for="font-variant-none">none</label><br/>
<input type="radio" id="font-variant-normal" name="font_variant" value="normal" onchange="setCss()"> <label for="font-variant-normal">normal</label><br/>
<input type="radio" id="font-variant-small-caps" name="font_variant" value="small-caps" onchange="setCss()"> <label for="font-variant-small-caps">small-caps</label>
</div>
<div class="setPropCont">
font-weight<br/>
<input type="radio" id="font-weight-none" name="font_weight" value="" onchange="setCss()"> <label for="font-weight-none">none</label><br/>
<input type="radio" id="font-weight-normal" checked="" name="font_weight" value="400" onchange="setCss()"> <label for="font-weight-normal">normal</label><br/>
<input type="radio" id="font-weight-bold" name="font_weight" value="700" onchange="setCss()"> <label for="font-weight-bold">bold</label>
</div>
<div class="setPropCont">
font-size<br/>
<input type="radio" id="font-size-12px" name="font_size" value="12px" onchange="setCss()"> <label for="font-size-12px">12px</label><br/>
<input type="radio" id="font-size-16px" name="font_size" value="16px" checked="" onchange="setCss()"> <label for="font-size-16px">16px</label><br/>
<input type="radio" id="font-size-24px" name="font_size" value="24px" onchange="setCss()"> <label for="font-size-24px">24px</label>
</div>
<div class="setPropCont">
line-height<br/>
<input type="radio" id="line-height-none" name="line_height" checked="" value="" onchange="setCss()"> <label for="line-height-none">none</label><br/>
<input type="radio" id="line-height-1.2" name="line_height" value="/1.2" onchange="setCss()"> <label for="line-height-1.2">1.2</label><br/>
<input type="radio" id="line-height-3" name="line_height" value="/3" onchange="setCss()"> <label for="line-height-3">3</label>
</div>
<div class="setPropCont">
font-family<br/>
<input type="radio" id="font-family-courier" name="font_family" checked="" value="courier" onchange="setCss(5,'courier')"> <label for="font-family-courier">courier</label><br/>
<input type="radio" id="font-family-serif" name="font_family" value="serif" onchange="setCss()"> <label for="font-family-serif">serif</label><br/>
<input type="radio" id="font-family-sans-serif" name="font_family" value="sans-serif" onchange="setCss()"> <label for="font-family-sans-serif">sans-serif</label>
</div>
</div>
<div class="cf propInputs">
<div class="propInputCont tar">
font :
</div>
<div class="propInputCont">
<input type="text" class="curCss" id="input_font_style"><br/>
font-style <br/>
optional
</div>
<div class="propInputCont">
<input type="text" class="curCss" id="input_font_variant"> <br/>
font-variant <br/>
optional
</div>
<div class="propInputCont">
<input type="text" class="curCss" id="input_font_weight"> <br/>
font-weight <br/>
optional
</div>
<div class="propInputCont">
<input type="text" class="curCss mandatory" id="input_font_size"> <br/>
font-size <br/>
mandatory
</div>
<div class="propInputCont">
<input type="text" class="curCss" id="input_line_height"> <br/>
line-height <br/>
optional
</div>
<div class="propInputCont">
<input type="text" class="curCss mandatory" id="input_font_family"> <br/>
font-family <br/>
mandatory
</div>
</div>
</form>
<div class="fontShortHand">
This is some sample text.
</div>
CSS Content
body, input {
font: 14px arial;
}
.propInputCont {
float: left;
text-align: center;
margin-right: 5px;
width: 80px;
}
.setPropCont {
float: left;
margin-right: 5px;
width: 120px;
}
.propInputs, .setPropCont {
margin-bottom: 1em;
}
.curCss {
border: none;
border-bottom: 1px solid black;
text-align: center;
width: 80px;
}
.mandatory {
border-bottom-color: red;
}
.cf:before,
.cf:after {
content: " ";
display: table;
}
.cf:after {
clear: both;
}
.tar {
width: 40px;
text-align: right;
}
JavaScript Content
var textAreas = document.getElementsByClassName("curCss"),
shortText = "",
getCheckedValue,
setCss,
getProperties,
injectCss;
getProperties = function () {
shortText =
getCheckedValue("font_style") + " " +
getCheckedValue("font_variant") + " " +
getCheckedValue("font_weight") + " " +
getCheckedValue("font_size") +
getCheckedValue("line_height") + " " +
getCheckedValue("font_family");
return shortText;
}
getCheckedValue = function(radio_name) {
oRadio = document.forms[0].elements[radio_name];
for (var i = 0; i < oRadio.length; i++) {
if(oRadio[i].checked) {
var propInput = "input_" + radio_name,
curElemName = "input_" + radio_name,
curElem = document.getElementById(curElemName);
curElem.value = oRadio[i].value;
return oRadio[i].value;
}
}
}
setCss = function () {
getProperties();
injectCss(shortText);
}
injectCss = function(cssFragment) {
old = document.body.getElementsByTagName("style");
if (old.length > 1) {
old[1].parentElement.removeChild(old[1]);
}
css = document.createElement("style");
css.innerHTML = ".fontShortHand{font: " + cssFragment + "}";
document.body.appendChild(css);
}
setCss();
BCD tables only load in the browser
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out
https://github.com/mdn/browser-compat-data and send us a pull request.
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