Changing vertical text orientation

I found the following code that makes text vertical, except I want the text to read from the bottom up, not from the top down. Does anyone know how I can change the font orientation?

Thanks


.vertical_text {
color:#333;
border:0px solid red;
writing-mode:tb-rl;
-webkit-transform:rotate(90deg);
-moz-transform:rotate(90deg);
-o-transform: rotate(90deg);
white-space:nowrap;
display:block;
bottom:0;
width:20px;
height:20px;
font-family: Helvetica, sans-serif;
font-size:16px;
font-weight:normal;
text-shadow: 0px 0px 1px #333;
}

Try -90deg or 270deg. Those are equivalent to inverted vertical.

That worked!