.rb-grid {
    list-style: none;
    text-align: center;
    margin: 0 auto;
}
.rb-grid li {
    cursor: pointer;
    display: block;
    float: left;
    margin: 0 10px;
    position: relative;
    width: auto;
}
.rb-grid li.rb-span-2 {
    width: 49%;
}
.rb-grid li.rb-span-4 {
    width: 99%;
}
.rb-overlay {
    cursor: default;
    height: 100%;
    left: 0;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 0;
    transition: all 0.4s ease;
    width: 100%;
    z-index: -1;
}

.rb-close {
    position: absolute;
    top: 1em;
    right: 1em;
    width: 2em;
    height: 2em;
    text-indent: -9000px;
    cursor: pointer;
    z-index: 1000;
}

@media (max-width:1490px) {
    .rb-close {
        z-index:1002;
    }
}

.rb-close::before {
    content: '✕';
    font-weight: 100;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-size: 2.2em;
    line-height: 0.6;
    text-align: center;
    text-indent: 0;
    color: #F16926;
    
}