Positioning "Search Box" with CSS

I want to change the position of "Search Box" on My Personal Website. I tried to use margin and padding; but they did not work. The search box should be on the right-top. Below my search box code that is from Firefox's Firebug extension.

CODE:

#search {
-moz-background-clip:border;
-moz-background-inline-policy:continuous;
-moz-background-origin:padding;
-moz-border-radius-bottomleft:12px;
-moz-border-radius-bottomright:12px;
background:#DEE2E7 url(images/bg-search.gif) repeat-x scroll 0 0;
border:1px solid #555555;
float:right;
padding:8px;
position:relative;
top:0;
width:20em;