.cat-300 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -100% 0%; }
.cat-301 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: 0% -300%;}
.cat-302 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: 0% -100%;}
.cat-303 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -100% -100%;}
.cat-304 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -200% 0%;}
.cat-305 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -200% -100%;}
.cat-306 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: 0% -200%;}
.cat-307 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -100% -200%;}
.cat-308 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -200% -200%;}
.cat-309 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -300% 0%;}
.cat-310 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -300% -100%;}
.cat-311 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -300% -200%;}
.cat-312 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: 0% 0%;}
.cat-313 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -100% -300%;}
.cat-314 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -200% -300%;}
.cat-315 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -300% -300%;}
.cat-316 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -400% 0%;}
.cat-317 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -400% -100%;}
.cat-318 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -400% -200%;}
.cat-319 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -400% -300%;}
.cat-320 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: 0% -400%;}
.cat-321 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -100% -400%;}
.cat-322 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -200% -400%;}
.cat-323 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -300% -400%;}
.cat-324 { background-image: url(sprite300-324.png); width: 100%; height: 0; padding-bottom: 100%; background-size: 500% 500%; background-position: -400% -400%;}