Does anyone know if/when Internet Explorer will support the "border-radius" CSS attribute?
It is not planned for IE8. See the CSS Compatibility page.
Beyond that no plans have been released. Rumors exist that IE8 will be the last version.
While you're waiting.. Curved corner (border-radius) cross browser
Quick update to this question, IE9 will support border-radius according to: http://blogs.msdn.com/ie/archive/2009/11/18/an-early-look-at-ie9-for-developers.aspx
The answer to this question has changed since it was asked a year ago. (This question is currently one of the top results for Googling "border-radius ie".)
IE9 will support border-radius
.
There is a platform preview available which supports border-radius
. You will need Windows Vista or Windows 7 to run the preview (and IE9 when it is released).
Yes! When IE9 is released in Jan 2011.
Let's say you want an even 15px on all four sides:
.myclass {
border-style: solid;
border-width: 2px;
-moz-border-radius: 15px;
-webkit-border-radius: 15px;
border-radius: 15px 15px 15px 15px; /* for some reason you have to declare all corners in ie*/
}
IE9 will use the default border-radius
, so just make sure you include that in all your styles calling a border radius. Then your site will be ready for IE9.
-moz-border-radius
is for Firefox, -webkit-border-radius
is for Safari and Chrome.
Furthermore: don't forget to declare your IE coding is ie9:
<meta http-equiv="X-UA-Compatible" content="IE=9" />
Some lazy developers have <meta http-equiv="X-UA-Compatible" content="IE=7" />
. If that tag exists, border-radius will never work in IE.
A workaround and a handy tool:
CSS3Pie uses .htc files and the behavior property to implement CSS3 into IE 6 - 8. http://css3pie.com/
Modernizr is a bit of javascript that will put classes on your html element, allowing you to serve different style definitions to different browsers based on their capabilities.
Since I can only post one url, you'll have to google it: modernizr
Obviously, these both add more overhead, but with IE9 due to only run on Vista/7 we might be stuck for quite awhile. As of August 2010 Windows XP still accounts for 48% of web client OSes.