--- title: font slug: Web/CSS/font translation_of: Web/CSS/font ---
{{ CSSRef() }}
font 属性可以用来作为 {{ Cssxref("font-style") }}, {{ Cssxref("font-variant") }}, {{ Cssxref("font-weight") }}, {{ Cssxref("font-size") }}, {{ Cssxref("line-height") }} 和 {{ Cssxref("font-family") }} 属性的简写,或将元素的字体设置为系统字体。
{{EmbedInteractiveExample("pages/css/font.html")}}
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{{ cssxref("font-stretch") }},{{ cssxref("font-size-adjust") }} 和 {{ cssxref("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:
font-style, font-variant 和 font-weight 必须在 font-size 之前font-variant 只可以是 normal 和 small-capsline-height 必须跟在 font-size 后面,由 "/" 分隔,例如 "16px/3"font-family 必须最后指定<'font-style'><'font-variant'><'font-weight'><'font-size'><'line-height'><'font-family'>captioniconmessage-boxsmall-captionstatus-bar-moz-window, -moz-document, -moz-desktop, -moz-info, -moz-dialog, -moz-button, -moz-pull-down-menu, -moz-list, 和 -moz-field./* 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
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();
{{ EmbedLiveSample('live_sample','100%', '380px') }}
| 规范 | 状态 | 注释 |
|---|---|---|
| {{ SpecName('CSS3 Fonts', '#font', 'font') }} | {{ Spec2('CSS3 Fonts') }} | 添加对 font-stretch 的支持 |
| {{ SpecName('CSS2.1', 'fonts.html#font-shorthand', 'font-weight') }} | {{ Spec2('CSS2.1') }} | 添加对关键字的支持 |
| {{ SpecName('CSS1', '#font', 'font') }} | {{ Spec2('CSS1') }} | 初始定义 |
{{Compat("css.properties.font")}}