Why “Inline-block” doesn't work properly in this CSS?

Question

Please check the CSS below.

 /*rex is the container of ex,ex2,ex3*/
div.rex{
height:200px;
border:0px;
margin:60px auto;
padding: 0;
vertical-align:top;
}

div.e         


        

Answer 1

You can sue comments like that (this looks little better in code):