The markup on the new and improved StackExchange.com landing page contains html markup that isn't allowed according the specification.
Please note that the functionality of the page is NOT AFFECTED in anyway.
<div class="question-container">
<a href="http://mathoverflow.net/questions/173268/mathematicians-who-made-important-contributions-outside-their-own-field">
<div class="hot-question-site-icon">
<a href="http://mathoverflow.net/questions/173268/mathematicians-who-made-important-contributions-outside-their-own-field" title="view this question on mathoverflow.net"><img src="http://cdn.sstatic.net/mathoverflow/img/icon-48.png" /></a>
</div>
</a>
The W3C Validator claims:
Error: An a start tag seen but an element of the same type was already open.
Inside the hero-box the all the img
tags are missing an alt-atrribute
<div class="column">
<img src="/content/img/hero/bubble.png" />
<div class="blurb">
<em>Expert communities.</em><br />
Each of our <span class="old">125</span>
communities is built by people passionate about a focused topic.
</div>
</div>
Error: An img element must have an alt attribute, except under certain conditions.
Even IE11 barks about it!
When you are going to touch that page, can you fix those two minor bugs as well?