★ Tumblr, why do you hate web standards ?
Granted, my website may not totally respect web standards but Tumblr is not really helping us here. I usually make use of the W3C validator whenever developing a website or a template and I try to tweak my HTML as much as I can. Don’t get me wrong, I love the Tumblr platform which is both very easy but also very customizable as well.
However Tumblr is sneakily adding not just one - as they used to - but two different elements in your code. You are not going to see it in your Dashboard. In fact you are not going to see it either by viewing the source of your website in your browser. There is no way you can remove those two elements.
Head over here, and try to validate your website. Do not forget to check the box “Show source”. You’ll see that Tumblr is adding a JavaScript at the top your header but also an iFrame at the very bottom. Check after the break to see what they look like. I wish Tumblr would make an effort reduce the number of errors they produce.