Align to DIVs Side-by-side - Page 1

Hi...How to make inline-block to work, or any usefull hint to do it?


<STYLE>
.cabecalho_emissao_pagina{
display: inline-block;
width: 50%;
}
</STYLE>


<DIV class='cabecalho_emissao_pagina'>SIDE LEFT</DIV> <DIV class='cabecalho_emissao_pagina'>SIDE RIGHT</DIV>

Tkx in advance