.battery {
        width: 39px; 
        height: 15px; 
    }
.empty {
    background-image: url("http://static.tumblr.com/fqfp7qy/wXjn9you4/empty.png");
}
.red1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/WS7n9yppx/red_1.png"); 
}
.red2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/ez5n9ypqp/red_2.png"); 
}
.red3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/ZIvn9ypr9/red_3.png"); 
}
.red4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/cOwn9yprr/red_4.png"); 
}
.blue1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/k0sn9yqaa/blue_1.png"); 
}
.blue2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/cWNn9yqeu/blue_2.png"); 
}
.blue3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/gzGn9yqfc/blue_3.png"); 
}
.blue4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/msln9yqfr/blue_4.png"); 
}
.yellow1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/MMxn9yrgf/yellow_1.png"); 
}
.yellow2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/fqrn9yrgu/yellow_2.png"); 
}
.yellow3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/jcmn9yrhh/yellow_3.png"); 
}
.yellow4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/hJTn9yrp6/yellow_4.png"); 
}
.pink1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/HiIn9yru4/pink_1.png"); 
}
.pink2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/rYUn9yruk/pink_2.png"); 
}
.pink3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/o8Tn9yrv7/pink_3.png"); 
}
.pink4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/OMwn9yrzp/pink_4.png");
}
.green1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Hnxn9ys08/green_1.png"); 
}
.green2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/OYDn9ys0o/green_2.png"); 
}
.green3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/SLOn9ys19/green_3.png"); 
}
.green4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Om0n9ys1n/green_4.png"); 
}
.purple1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Ifona61ws/purple_1.png"); 
}
.purple2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/E6Nna61x3/purple_2.png");
}
.purple3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/TO2na61xd/purple_3.png");
}
.purple4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/MgAna61z4/purple_4.png");
}
.orange1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/C8Rna62d8/orange_1.png");
}
.orange2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/XUWna62dj/orange_2.png");
}
.orange3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Wl6na62dy/orange_3.png");
}
.orange4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Ilqna62e7/orange_4.png");
}
.black1 {
    background-image: url("http://static.tumblr.com/fqfp7qy/Qvjna62u9/black_1.png");
}
.black2 {
    background-image: url("http://static.tumblr.com/fqfp7qy/VoOna62v3/black_2.png");
}
.black3 {
    background-image: url("http://static.tumblr.com/fqfp7qy/uodna62xn/black_3.png");
}
.black4 {
    background-image: url("http://static.tumblr.com/fqfp7qy/GsAna62y6/black_4.png");
}