HTML5: fieldset and legend elements

fieldset element - is used to group a batch of controls together. Also it draws a box around the grouped elements. The title of such a group of controls is given by the first element of the fieldset - legend element. Example of grouped controls could be a question for multiple-choice test - collection of radiobuttons:

<form>
 <fieldset>
  <legend> Question 1 </legend>
  
 <input type="radio" name="answer"> A 
  
 <input type="radio" name="answer"> B 
  
 <input type="radio" name="answer"> C 
  
 <input type="radio" name="answer"> D 
 </fieldset>
</form>

To make sure the radiobuttons work together, they are given the same name. Fieldset element can be located ouside of a form but still be part of that form by specifying form attribute:

<fieldset form="form_id"> 

But the form attribute so far only supported in Opera browser. The HTML legend tag is used for providing a title or explanatory caption for the rest of the contents of the legend element's parent elements, in particular fieldset, figure, and details elements. Helpful links: HTML5 Forms What's different in HTML5?