CSS Cover link text with Image

<th>
  My Heading
  <a href="#" class="sort-asc" title="sort">Sort Asc</a>
</th>

I want to apply CSS to .sort-asc to replace the text "Sort Asc" with a custom 16x16 sort glyph image (/images/asc.png), placing the image directly to the right of the text. Is it possible?

NOTE: I can't change the markup. I can only apply styles; the following is my feeble attempt:

a.sort-asc {
    float: left;
    width: 16px;
    height: 16px;
    padding: 0;
    margin: 5px;
    display: block;
    text-indent: -2000px;
    overflow: hidden;
    background: url("/images/asc.png") no-repeat; 
}

Currently, the image shows up all the way to the left of the table header cell. I need it to the right of the text "My Heading".

From stackoverflow

• Remove float and display:block for the text to appear next to the "My Heading" text.

  Travis Heseman : Just did and now the image shows up behind "Sort Asc". I don't want "Sort Asc" to show up at all.

  Vincent Ramdhanie : Try setting the color of the text to the same color as background - This is a bit ugly but... color:#FFFFFF; background-color:#FFFFFF;

• If you remove the display block, you won't be able to set your width, height or use text-indent to hide the copy within the A. Try changing display:block to display:inline (since you're floating) instead - it may give you what you need.

  Travis Heseman : Changed "display: block;" to "display: inline;" - no change.

  Kobi : `Display` has no impact on floated elements, afaik.

  na_user : Well, to be fair, it does - it fixes double float bug margins on floated elements in IE6.

  Kobi : Fair enough. Welcome to Stack Overflow.

• a.sort-asc {
      width: 16px;
      height: 16px;
      padding: 0;
      display:inline-block;
      text-indent: 200px;
      overflow: hidden;
      background: url("/favicon.ico") no-repeat; 
  }
  

  Removed float - you don't need it, it's on the right position. Text indent does nothing with inline, try inline-block: http://jsbin.com/abeme

  Another hack is to add color: transparent, and a small size, but that too hacky.