.zoom {
    position: relative;
    margin: auto;
    overflow: hidden;
    width: 100%;
    border-radius: 10px;
}

.zoom img {
    transition-duration: 1s;
    margin: 0 auto;
    display: block;
    width: 100%;
}
.zoom img:hover {
    transform: scale(1.2);
    -webkit-transform: scale(1.2);
    -moz-transform: scale(1.2);
    z-index: 0;
}


/*.zoom {
    position: relative;
    margin: auto;
    overflow: hidden;
    width: 100%;
}
.zoom img {
    max-width: 100%;
    transition: all 0.3s;
    display: block;
    width: 100%;
    transform: scale(1);
}

.zoom:hover img {
    transform: scale(1.3);
}*/

/*.overflow {
    width: 100%;
    overflow: hidden;
}
.overflow img:hover {
    -webkit-transform: scale(1.6); 
    -moz-transform: scale(1.6);
    -o-transform: scale(1.6);
    transform: scale(1.6);
}
.overflow img {overflow: hidden;
    -webkit-transition: all .4s ease-in-out;
    -moz-transition: all .4s ease-in-out;
    -o-transition: all .4s ease-in-out;
    -ms-transition: all .4s ease-in-out;
  width: 100%;
}*/
/*.overflow {
    position: relative;
    margin: auto;
    overflow: hidden;
    width: 540px;
}
.overflow img {
    max-width: 100%;
    transition: all 0.3s;
    display: block;
    width: 100%;
    height: auto;
    transform: scale(1);
}

.overflow:hover img {
    transform: scale(1.1);
}*/