Background not showing behind floating divs [duplicate]

Answer 1

You container div #right_b is collapsing because its children are floating. You can fix this with the "Clear-Fix" technique. You may want to check out the following Stack Overflow post for a few solutions:

• Which method of ‘clearfix’ is best?

One popular solution is to add overflow: hidden to your container div: #right_b:

#right_b {
   background:transparent url('img/right.png');
   background-position: right top;
   background-repeat: repeat-y;
   overflow: hidden;
}

Another common one is to add a

 

before closing your container div:

   

      
 
         
text 1
         
text 2