And I will paste the info from the forum also here:
Since Q1 2013, the wrapping element of RadButton was changed from an anchor <a> tag to a <span> because the HTML5 specification does not allow nesting <input> elements into <a> tags. If you are using any custom CSS cascades based on the <a> tag, they should be changed to use the <span> tag, e.g.
Old syntax:
a.RadButton .rbDecorated
{
color: red;
}
New syntax:
span.RadButton .rbDecorated
{
color: red;
}
You should not experience problems in custom styling scenarios when an anchor was not used in the CSS cascade.
Regards,
Bozhidar
Telerik
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