.height-1 { height: 1em; }
.height-2 { height: 2em; }
.height-3 { height: 3em; }
.height-4 { height: 4em; }
.height-5 { height: 5em; }
.height-6 { height: 6em; }
.height-7 { height: 7em; }
.height-8 { height: 8em; }
.height-9 { height: 9em; }
.height-10 { height: 10em; }
.height-11 { height: 11em; }
.height-12 { height: 12em; }
.height-13 { height: 13em; }
.height-14 { height: 14em; }
.height-15 { height: 15em; }

.hidden { display: none; }

.opacity-0 { opacity: 0; filter: alpha(opacity=0); -moz-opacity: 0; }
.opacity-10 { opacity: 0.1; filter: alpha(opacity=10); -moz-opacity: 0.1; }
.opacity-20 { opacity: 0.2; filter: alpha(opacity=20); -moz-opacity: 0.2; }
.opacity-30 { opacity: 0.3; filter: alpha(opacity=30); -moz-opacity: 0.3; }
.opacity-40 { opacity: 0.4; filter: alpha(opacity=40); -moz-opacity: 0.4; }
.opacity-50 { opacity: 0.5; filter: alpha(opacity=50); -moz-opacity: 0.5; }
.opacity-60 { opacity: 0.6; filter: alpha(opacity=60); -moz-opacity: 0.6; }
.opacity-70 { opacity: 0.7; filter: alpha(opacity=70); -moz-opacity: 0.7; }
.opacity-80 { opacity: 0.8; filter: alpha(opacity=80); -moz-opacity: 0.8; }
.opacity-90 { opacity: 0.9; filter: alpha(opacity=90); -moz-opacity: 0.9; }
.opacity-100 { opacity: 1; filter: alpha(opacity=100); -moz-opacity: 1; }

.center { text-align: center; }

p { padding: 10px 0 0 10px; }