CSS Vertical text

Try this:

 <style>.test {  
      writing-mode:tb-rl;  
      -webkit-transform:rotate(90deg);  
      -moz-transform:rotate(90deg);  
      -o-transform: rotate(90deg);  
 }  
 </style>  
 <p class="test">testing 12123123</p>  

Result:

testing 12123123

Reference here