2 side by side same size fieldset

Question

I'm designing a webpage with Primefaces but I think my problem is more general :

I want 2 fieldsets side by side that have the same size. How can I do it ?

Edit: The 2 fieldset are in a <div> with height:auto; width:auto; height:auto; width:auto;

Answer 1

try this in css

fieldset{
width :50%;
padding : 0;
margin : 0;
display : inline-block;
}

Answer 2

• Give each <fieldset> a width of 50%
• Float the first one to the left, float the second one to the right