body{
	background-color: #F1F3F6 !important;
}

.titulo-ensayos{
	margin-bottom: 10px;
	text-transform: uppercase;
	color: gray;
	font-size: 13px;
	font-weight: bold;
	margin-top: 20px;
}

.titulo-unidades{
	margin-bottom: 30px;
	text-transform: uppercase;
	color: gray;
	font-size: 13px;
	font-weight: bold;
	margin-top: 20px;
	display:block;
	clear:both;
	margin-left:30px;
}

.col-portadas{
	display: flex;
	align-items: left;
	justify-content: left;
	margin-bottom: 19px;
}

.portada-ensayo{
	display: flex;
	align-items: left;
	justify-content: left;
	background-color: silver;
	width: 137px;
	cursor: pointer;
	margin: auto;
    margin-bottom: 20px;

}

.contenedor-biblioteca{
	padding-left: 10px;
	padding-right: 10px;
	width: 80%;
	margin-left: auto;
	margin-right: auto;
	background-color: yellow;
	position: relative;
	padding-bottom: 0px;
	margin-top: 80px;
}

.menu-explorando-psu{
	width:auto;
	padding-top:20px;
	margin:auto;
	text-align:center;
	
	
}

.menu-secciones{
	list-style:none;
	margin:0px;
	padding:0px !important;
	font-size:12px;
	display: inline-block;
	
}

.menu-secciones li{
	float:left;
	margin:0px;
	padding:0px;
	height:40px;
	
	
}
.menu-secciones li a{
	padding-left:20px;
	padding-right:20px;
	padding-top:8px;
	padding-bottom:8px;
	display:block;
	text-align:center;
	background-color:#F1F3F6;
	border-right:1px solid #CACCD0;
	border-bottom:1px solid #CACCD0;
	border-top:1px solid #CACCD0;
	text-transform:uppercase;
	height:40px;
	  display: flex;
  align-items: center;
  justify-content: center;
  line-height:14px;
	
}

.menu-secciones li:first-child a { 
   border-left:1px solid #CACCD0;
  border-top-left-radius: 0.5em;
   border-bottom-left-radius: 0.5em;

}

.menu-secciones li  a span{
	display:block !important;
}



.menu-secciones li a.active, .menu-secciones li a:hover {
	background-color:#FFF;
	color:#222;
	font-weight:600;
	}

.menu-secciones li:last-child a { 

  border-top-right-radius: 0.5em;
   border-bottom-right-radius: 0.5em;

}