why i get button stretch width problem on IE?

i have a button on my login page that results stretched in all IE browser versions.

Plese look at my live site black "LOGIN" button here: www.urbanclaim.com

this is the code i use for this button: (view source code for the form structure)

开发者_Go百科<input style="margin-left:15px;"  type="submit" name="Submit" class="button" value="<?php echo JText::_('LOGIN') ?>" />

How can i solve this problem on ie?? thanks.

Your button would work fine in IE8/9, but you have this:

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />

which forces those browsers to emulate IE7, which is the only version that actually has a problem with your button.

To fix IE7 (and other versions of IE in IE7 mode..):

• On the label that is the parent of .art-button-wrapper, change margin-left: 300px to padding-left: 300px. Also add display: block. Make the same changes to the next label.

See in IE7: http://jsbin.com/akavef/3

<!--
<label style="margin-left:300px;font-weight: bold; ">
-->
<label style="padding-left:300px;font-weight: bold; display:block ">