.hidden
{
	display: none;
}

.clickable
{
    cursor: pointer;
}

.div_break
{
	width: 100%;
	height: 1px;
}

.div_left
{
	float: left;
}

.div_right
{
	float: right;
	right: 0px;
}

.div_center
{
	margin-left: auto ;
	margin-right: auto ;
}

.text_center
{
	text-align: center;
}