font

The font CSS property is either a shorthand property for setting font-style, font-variant, font-weight, font-size, line-height and font-family, or a way to set the element's font to a system font, using specific keywords.

As with any shorthand CSS properties, the values which are not set in it are set to their individual initial values, eventually overriding values previously set using non-shorthand properties.

Syntax

/* size | family */
font: 2em "Open Sans", sans-serif;

/* style | size | family */
font: italic 2em "Open Sans", sans-serif;

/* style | variant | weight | size/line-height | family */
font: italic small-caps bolder 16px/3 cursive;

/* style | variant | weight | stretch | size/line-height | family */
font: italic small-caps bolder condensed 16px/3 cursive;

/* The font used in system dialogs */
font: message-box;
font: icon;

/* Global values */
font: inherit;
font: initial;
font: unset;

Values

<'font-style'>

See the font-style CSS property.

<'font-variant'>

See the font-variant CSS property.

<'font-weight'>

See the font-weight CSS property.

<'font-stretch'>

See the font-stretch CSS property.

<'font-size'>

See the font-size CSS property.

<'line-height'>

See the line-height CSS property.

<'font-family'>

See the font-family CSS property.

caption icon menu message-box small-caption status-bar

Instead of specifying individual longhand properties, a keyword can be used to represent a specific system font:

caption	The font used for captioned controls (e.g., buttons, drop-downs, etc.).
icon	The font used to label icons.
menu	The font used in menus (e.g., dropdown menus and menu lists).
message-box	The font used in dialog boxes.
small-caption	The font used for labeling small controls.
status-bar	The font used in window status bars.

Browsers implementing these often implement several more, prefixed, values; Gecko implements -moz-window, -moz-document, -moz-desktop, -moz-info, -moz-dialog, -moz-button, -moz-pull-down-menu, -moz-list and -moz-field.

Formal syntax

[ [ <‘font-style’> || <font-variant-css21> || <‘font-weight’> || <‘font-stretch’> ]? <‘font-size’> [ / <‘line-height’> ]? <‘font-family’> ] | caption | icon | menu | message-box | small-caption | status-bar
where 
<font-variant-css21> = [normal | small-caps]

Examples

/* 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) 
and 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 }

Live Sample

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();

Specifications

Browser compatibility