/*          culoare */
.txt_red{
	color:red;
}
.txt_green{
	color:green;
}
.txt_yellow{
	color:yellow;
}
.txt_blue{
	color:blue;
}

/*    background */
.bg_pagina{
	background-color: #eeeedd;
}
.bg_red{
	background-color:red;
}
.bg_green{
	background-color:green;
}
.bg_yellow{
	background-color:yellow;
}
.bg_blue{
	background-color:blue;
}
#formula{
    font:20px/20px arial;
}


/*   aliniament */

.txt_left{
	text-align: left;
}
.txt_center{
	text-align: center;
}
.txt_right{
	text-align: right;
}