.vista {
    width: 270px;
    height: 200px;
    margin: 12px;
    /*float: left;*/
    border: 10px solid #fff;
    overflow: hidden;
    position: relative;
    text-align: center;
    box-shadow: 1px 1px 2px #e6e6e6;
    cursor: default;
}

.div_cont_categorias{
	display:flex; 
	flex-wrap:wrap;
	margin:25px 0 80px 0 
	}
	
	
.vista .mascara, .vista .contenido {
    width: 270px;
    height: 200px;
    position: absolute;
    overflow: hidden;
    top: 0;
    left: 0;
}
.vista img {
    display: block;
    position: relative;
}
/*.vista h2 {
    text-transform: uppercase;
    color: #fff;
    text-align: center;
    position: relative;
    font-size: 17px;
    padding: 10px;
    background: hsla(0,0%,0%,0.8);
    margin: 20px 0 0 0;
}*/
.vista p {
    font-family: Georgia, serif;
    font-style: italic;
    font-size: 12px;
    position: relative;
    color: #fff;
    padding: 10px 20px 20px;
    text-align: center;
}
.vista a.informacion {
    display: inline-block;
    text-decoration: none;
    padding: 7px 14px;
    background: #0059b2;
    color: #fff;
    text-transform: uppercase;
    box-shadow: 0 0 1px #000;
}
.vista a.informacion:hover {
    box-shadow: 0 0 5px #000
}
/******************************************************************************/
/* Estilos para ejemplo 5 */
.vista img {
    -webkit-transition: all 0.3s ease-in-out; 
    -moz-transition: all 0.3s ease-in-out; 
    -o-transition: all 0.3s ease-in-out; 
    -ms-transition: all 0.3s ease-in-out; 
    transition: all 0.3s ease-in-out; 
}
.vista .mascara {
    opacity: 1;
	 background-image:url(../imagenes/transicion_categorias/fdo.png);
   /*background-color:#333;
	opacity:.5;*/
    -webkit-transform: translateX(-270px);
    -moz-transform: translateX(-270px);
    -o-transform: translateX(-270px);
    -ms-transform: translateX(-270px);
    transform: translateX(-275px);
    -webkit-transition: all 0.4s ease-in-out; 
    -moz-transition: all 0.4s ease-in-out; 
    -o-transition: all 0.4s ease-in-out; 
    -ms-transition: all 0.4s ease-in-out; 
    transition: all 0.4s ease-in-out; 
}
/*.vista h2 {
    background: hsla(0,0%,100%,0.5);
    color: hsl(0,0%,0%);
    box-shadow: 0px 1px 3px hsla(3,9%,59%,0.5);
}*/
.vista p {
    opacity: 0;
    color: #333;
    -webkit-transition: all 0.2s linear;
    -moz-transition: all 0.2s linear;
    -o-transition: all 0.2s linear;
    -ms-transition: all 0.2s linear;
    transition: all 0.2s linear;
}
.vista:hover .mascara { 
    -webkit-transform: translateX(0px);
    -moz-transform: translateX(0px);
    -o-transform: translateX(0px);
    -ms-transform: translateX(0px);
    transform: translateX(0px);
}
.vista:hover img    { 
    /*-webkit-transform: translateX(270px);
    -moz-transform: translateX(270px);
    -o-transform: translateX(270px);
    -ms-transform: translateX(270px);
    transform: translateX(270px);
    -webkit-transition-delay: 0.1s;
    -moz-transition-delay: 0.1s;
    -o-transition-delay: 0.1s;
    -ms-transition-delay: 0.1s;
    transition-delay: 0.1s;*/
}  
.vista:hover p {
    opacity: 1;
    -webkit-transition-delay: 0.4s;
    -moz-transition-delay: 0.4s;
    -o-transition-delay: 0.4s;
    -ms-transition-delay: 0.4s;
    transition-delay: 0.4s;
}