New HTML5 input attributes
There are new attributes for the input tag that was not previously in HTML4. For example, in HTML 5 you can have …
<input type=”text” name=”postaladdress” required=”off” >
where autocomplete is an new attribute in HTML5.
The attributes of the input tag that are new in HTML5 are …
For reference for the attributes for the input tag including the new ones for HTML5, you can see w3schools.com