.tira {
	width:100%;
	padding:10px 20px;
	color:#fff;
	font-size:22px;
	text-decoration:none;
	position:relative;
	top:5px;
	text-transform:uppercase;
	font-family: Roboto, sans-serif; 
}  
 
 
.generico{
color: #000;
background: #eeeeee;
background: -moz-linear-gradient(top,  #eeeeee 0%, #cccccc 100%);
background: -webkit-linear-gradient(top,  #eeeeee 0%,#cccccc 100%);
background: linear-gradient(to bottom,  #eeeeee 0%,#cccccc 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#cccccc',GradientType=0 );
	
}

.header_contenido {
	display: flex;
	justify-content: center;
	background-image: url('webapp/img/encabezadoaetm.png');
	background-size:cover;

}