.columna
{
	width: 33%;
    float: left;
    vertical-align: middle;
    background-color: transparent;
    min-height: 115px;
}

.texto_enlace
{
	font-size:0.9em;
	color:black;
	text-align:center;
	line-height:normal;	
	height:2.8em;
	
}

.imagen
{
	padding-top:5%;
	text-align:center;				
}