.opacity-10 {
    filter: alpha(opacity = 10);
    -moz-opacity: .10;
    opacity: .10;
}

.opacity-20 {
    filter: alpha(opacity = 20);
    -moz-opacity: .20;
    opacity: .20;
}

.opacity-30 {
    filter: alpha(opacity = 30);
    -moz-opacity: .30;
    opacity: .30;
}

.opacity-40 {
    filter: alpha(opacity = 40);
    -moz-opacity: .40;
    opacity: .40;
}

.opacity-50 {
    filter: alpha(opacity = 50);
    -moz-opacity: .50;
    opacity: .50;
}

.opacity-60 {
    filter: alpha(opacity = 60);
    -moz-opacity: .60;
    opacity: .60;
}

.opacity-70 {
    filter: alpha(opacity = 70);
    -moz-opacity: .70;
    opacity: .70;
}

.opacity-80 {
    filter: alpha(opacity = 80);
    -moz-opacity: .80;
    opacity: .80;
}

.opacity-90 {
    filter: alpha(opacity = 90);
    -moz-opacity: .90;
    opacity: .90;
}

.opacity-100, .full-opacity {
    filter: alpha(opacity = 100);
    -moz-opacity: 1;
    opacity: 1;
}