.margin_center {
margin: 0 auto;
}

.align_left {
text-align:left;
}
.align_right {
text-align:right;
}
.align_center {
text-align:center;
}

.float_left {
float:left;
}
.float_right {
float:right;
}
.reset {
clear:both;
height:0px;
overflow:hidden;
}

.invisible {
display:none;
}
.visible {
display:block;
}

.full-width {
width:100% !important;
}
.threequarter_width {
width:75% !important;
}
.half_width {
width:50% !important;
}
.quarter_width {
width:25% !important;
}
.fifth_width {
width:20% !important;
}

.no_border {
border-width:0 0 0 0 !important;
}
.right_border {
border-width:0 1px 0 0 !important;
}
.left_border {
border-width:0 0 0 1px !important;
}