Why does Firefox 4 absolutely position fieldset legends differently than other browsers?
Test page:
<!DOCTYPE html>
<html dir="ltr" lang="en">
<head>
<meta charset="utf-8"/>
<title>Test</title>
<style type="text/css">
*
{
margin: 0;
padding: 0;
}
body
{
font-family: Tahoma, Arial, sans-serif;
font-size: 62.5%;
}
#wrapper
{
margin: auto;
padding: 1em;
width: 720px;
}
form
{
width: 670px;
padding: 25px;
background-color: #ffffff; /* White */
color: #000000; /* Black */
border: 1px solid #cccccc; /* Gray */
font-size: 12px;
}
fieldset
{
position: relative;
border: 1px solid #cccccc; /* Gray */
padding: 25px 10px 5px 15px;
margin-bottom: 20px;
}
fieldset legend
{
position: absolute;
top: 5px;
left: -10px;
/* Firefox */
/*top: -20px;
left: -25px;*/
font-weight: 900;
background-color: #ffffff; /* White */
}
/* Input Types */
label
{
margin-right: 10px;
line-height: 20px;
}
</style>
</head>
<body>
<div id="wrapper">
<form method="POST" action="test" id="testForm">
<fieldset>
<legend>Test</legend>
<label for="test">Test:</label><input type="text" id="test" name="test" value=""/>
</fieldset>
<input type="submit" value="Test"/>
</form>
</div>
</body>
</html>
Notice that in Opera 11.10 Build 2092, Chrome 11.0.696.65, Safari 5.0.4 (7533.20.27), and Windows Internet Explorer 9, they display the legend on the left, overlapping the fieldset border.
In Firefox 4.0.1, I have to change the top
and left
properties to get a similar effect. For example, within the style
tag of the test page, uncomment this CSS:
/* Firefox */
/*top: -20px;
left: -25px;*/