I found a solution.:) I changed the color of the text to transparent and inserted a new witdh line because my “Read more” gif is 230px wide.
p.readmore a {
background: url(../images/arrow_red_green2.gif) no-repeat right top;
color: transparent !important;
display: inline-block;
font: bold 10px/20px "Trebuchet MS", Helvetica, sans-serif;
height: 20px;
width: 230px;
text-transform: uppercase;
}
p.readmore a:hover, p.readmore a:active, p.readmore a:focus {
background: url(../images/arrow_red_green2.gif) no-repeat right bottom;
color: transparent !important;
text-decoration: none;
width: 230px;
}
Default the color for the text was #000 and #FFF for hover.
toloekka