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.alpha10:nth-child(n){filter:none;}
.alpha20{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.2);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#33000000, endColorstr=#33000000);zoom:1;}
.alpha20:nth-child(n){filter:none;}
.alpha30{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.3);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4c000000, endColorstr=#4c000000);zoom:1;}
.alpha30:nth-child(n){filter:none;}
.alpha40{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.4);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#66000000, endColorstr=#66000000);zoom:1;}
.alpha40:nth-child(n){filter:none;}
.alpha50{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.5);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#7f000000, endColorstr=#7f000000);zoom:1;}
.alpha50:nth-child(n){filter:none;}
.alpha60{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.6);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);zoom:1;}
.alpha60:nth-child(n){filter:none;}
.alpha70{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.7);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#b2000000, endColorstr=#b2000000);zoom:1;}
.alpha70:nth-child(n){filter:none;}
.alpha80{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.8);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#cc000000, endColorstr=#cc000000);zoom:1;}
.alpha80:nth-child(n){filter:none;}
.alpha90{background:rgb(0, 0, 0);background:transparent \9;background:rgba(0, 0, 0, 0.9);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#e5000000, endColorstr=#e5000000);zoom:1;}
.alpha90:nth-child(n){filter:none;}