Not according to the spec: Some elements, not all of them form-associated, are categorized as labelable elements. These are elements that can be associated with a label element. “button” “input” (if the type attribute is not in the hidden state) “keygen” “meter” “output” “progress” “select” “textarea” http://www.w3.org/TR/html5/forms.html#category-label See also: The for attribute may be specified … Read more
It is valid to have an anchor inside a label — in HTML 4.01 as well as HTML5. You can try out the W3C Markup Validator to quickly check if your markup is valid. Whether it makes sense is another question. It is probably ok to have a link alongside with some non-link-text inside a … Read more
The reason this is happening is that as soon as you give position: fixed to your #sticky element, it takes it out of the document flow. This means that all of your div.child elements shift up, which makes the height of your container element get smaller. Because the container element height gets smaller, the container … Read more
Look up the new HTML5 Input Types. These instruct browsers to perform client-side filtering of data, but the implementation is incomplete across different browsers. The pattern attribute will do regex-style filtering, but, again, browsers don’t fully (or at all) support it. However, these won’t block the input itself, it will simply prevent submitting the form … Read more
The navbar-header is mostly an architectural class for Bootstrap navbar. It allocates approximately 150px to the left of the navbar to wrap the navbar-brand and allow the brand name or logo to make use of the entire area on click or hover. But the most useful property of the navbar-header is its responsiveness to 100% … Read more
I do all of my HTML editing in vim. The three plugins I find most helpful for editing HTML and XML in vim are matchit, surround, and allml. Matchit will allow you to jump to the start/end tag with ‘%’. Surround allows you to easily add, delete, and change the surrounding tags. Allml provides you … Read more
When the user clicks on a button, I hide few blocks by display:none, and the problem occurs. The nth-child selector also counts hidden elements. Is there way to ignore those specific blocks, so that again every row has different style? The problem is that the nth-child() selector looks at all siblings under the same parent … Read more
If you want to build a mobile-only site, I think the best html5 frameworks are: jQuery mobile + PhoneGap Sencha Touch + PhoneGap If you want to build a website that adapts for mobiles, tablets and desktop computers use Twitter Bootstrap, HTML5 Boilerplate, Zurb Foundation, Skeleton or Blueprint