what happen if we make css in that we put text-indent:-100em and give background image so text will go behind the image.
in other words text will hide under image.
is that ok with google, code is below
#logo a { background:url(../images/logo.png) no-repeat;}
#logo a{border:none;text-indent:-10000em;}
<h1 id="logo"><a href="index.html">your keyword</a></h1>



