.cursos{
	position:relative;
	float:left;
	width:300Px;
	margin-top:-10px;
	padding-bottom:5px;
}

.cursos2{
	position:relative;
	float:left;
	width:300Px;
	margin-top:-7px;
}

.lado_izq{
	position:relative;
	float:left;
	width:300px;
}

.lado_der{
	position:relative;
	float:left;
	width:300px;
}