--- 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-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<'font-style'>
<'font-variant'>
<'font-weight'>
<'font-size'>
<'line-height'>
<'font-family'>
icon
message-box
status-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")}}