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Ruby on Rails: How do I add placeholder text to a f.text_field?
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The "placeholder" attribute is only supported by HTML5 supporting browsers, leaving out browsers like Internet Explorer.
– travis-146
Aug 8 '11 at 20:52
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What is the difference between Normalize.css and Reset CSS?
...and also provides bug fixes for common problems like: display settings for HTML5 elements, the lack of font inheritance by form elements, correcting font-size rendering for pre, SVG overflow in IE9, and the button styling bug in iOS.
Normalize.css doesn't clutter your dev tools. A common irritation ...
What are allowed characters in cookies?
...e earlier version and it's just as much a load of nonsense.
RFC 6265 is an HTML5-era attempt to clear up the historical mess. It still doesn't match reality exactly but it's much better then the earlier attempts—it is at least a proper subset of what browsers support, not introducing any syntax th...
Get file size, image width and height before upload
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Multiple images upload with info data preview
Using HTML5 and the File API
Example using URL API
The images sources will be a URL representing the Blob object
<img src="blob:null/026cceb9-edr4-4281-babb-b56cbf759a3d">
const EL_browse = document.getElementById('br...
Android webview & localStorage
... have a problem with a webview which may access to the localStorage by an HTML5 app. The test.html file informs me that local
storage is'nt supported by my browser (ie. the webview ). If you have any suggestion..
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Using PHP with Socket.io
...as supported since PHP 5.
For client side, you need to use WebSocket that HTML5 supported instead of Socket.io (since you know, socket.io only works with node.js).
In case you still want to use Socket.io, you can try this way:
- find & get socket.io.js for client to use
- work with Ratchet t...
Invoking JavaScript code in an iframe from the parent page
...document which sent the message in the first place.
via http://dev.w3.org/html5/postmsg/#web-messaging
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How to link to part of the same document in Markdown?
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To be forward-compatible with HTML5, I would like to recommend replacing <a name="head1"/> with <a id="head1"/>.
– binki
Oct 22 '13 at 19:17
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Download and open PDF file using Ajax
...blob);
if (filename) {
// Use HTML5 a[download] attribute to specify filename.
var a = document.createElement("a");
// Safari doesn"t support this yet.
if (typeof a.download === "unde...
What is & used for
... should write &amp;current in your markup.
The gory details are in the HTML5 parsing spec - Named Character Reference State
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