.expo .container .item
{
    display: block;
    width: 24%;
    padding: 0.5%;
    float: left;
    overflow: hidden;
    height: 274px;
    position: relative;
}

.double-item
{
    display: block;
    width: 48%;
    padding: 0.5%;
    float: left;
    overflow: hidden;
    height: 274px;
    position: relative;   
    overflow: hidden;
}

.expo .double-item img,
.expo .item img
{
    max-width: 100%;
    width: 100%;
}

.expo .container  .item .hover
{
    opacity: 0;
    position: absolute;
    top: calc(2% + 10px);
    left: calc(2% + 10px);
    width: calc(96% - 20px);
    height: calc(96% - 20px);
    border: 1px solid #fff;
    box-shadow: 0 0 0 10px rgba(0,0,0,0.75);

    padding: 7%;
    color: #fff;
    background-color: rgba(0,0,0,0.75);
    moz-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    -webkit-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
}
.expo .container  .item:hover .hover
{
    opacity: 1;
}

.expo .container .item .hover:hover
{
    text-decoration: none;
}