#portafolio {
    margin: 0 auto;
    width: 100%;
}
.filtrar {
    padding: 40px 0;
}
.filtrar a {
    color: #a9a9a9;
    opacity: 1;
    padding: 10px 20px;
    transition: opacity 250ms ease-out 0s;
    text-decoration: none;
}
.filtrar a:hover {
    opacity: 0.7;
    transition: opacity 250ms ease-out 0s;
}

.filtrar a.actual {
    background-color: #1bbc9b !important;
    color: #fff !important;
}

.portfolioContenedor img {
    padding:5px;
}

.isotope-item {
    z-index: 2;
}
.isotope-hidden.isotope-item {
    pointer-events: none;
    z-index: 1;
}
.isotope,
.isotope .isotope-item {
  /* change duration value to whatever you like */

    -webkit-transition-duration: 0.8s;
    -moz-transition-duration: 0.8s;
    transition-duration: 0.8s;
}
.isotope {
    -webkit-transition-property: height, width;
    -moz-transition-property: height, width;
    transition-property: height, width;
}
.isotope .isotope-item {
    -webkit-transition-property: -webkit-transform, opacity;
    -moz-transition-property: -moz-transform, opacity;
    transition-property: transform, opacity;
}