My skeleton css doen't seem to work -

this first time trying use skeleton css. before used use blueprint css. trying simple code. not working. here code.

<div class="container">     <section class="two-thirds column" style="border: 1px solid black;">         2-3     </section>      <section class="one-third column">         1-3     </section> </div> 

it seems both sections taking entire width of page. doing wrong code or concept wrong. appreciated. in advance.

assuming you're using http://www.getskeleton.com/

<div class="container">   <div class="nine columns alpha"></div>   <div class="three columns omega"></div>         </div>