.step1 { 
    background: #111 url(st1_g.png) top; 
    width: 211px; 
    height: 60px; 
} 

.step1:hover { 
    background: #222 url(st1_b.png) top;
    width: 211px; 
    height: 60px;   
}

.step2 { 
    background: #111 url(st2_g.png) top; 
    width: 201px; 
    height: 60px; 
} 

.step2:hover { 
    background: #222 url(st2_b.png) top;
    width: 201px; 
    height: 60px;   
}

.step3 { 
    background: #111 url(st3_g.png) top; 
    width: 216px; 
    height: 60px; 
} 

.step3:hover { 
    background: #222 url(st3_b.png) top;
    width: 216px; 
    height: 60px;   
}