<div style="width:400px;">
  <div style="text-align:center; float:left; width:90%; color:white; background:green;">90%</div>
  <div style="text-align:center; background:red;">&nbsp;</div>
</div>
90%
 
<div style="width:400px;">
  <div style="text-align:right; float:left; width:90%; color:white; background:green;">90%</div>
  <div style="text-align:center; background:red;">&nbsp;</div>
</div>
90%