.gallery_thumb {
    display: block;
    float: left;
    clear: none !important;
    margin: 0 !important;
    max-width: none !important;
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    outline: 1px solid #fff;
    cursor: pointer;
}
.preview_container {
    position: relative;
    top: 10px;
    left: 10px;
    background-color: none;
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center center;
}
.preview_overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0, 0.96666);
    z-index: 1100;
}
.preview_arrow {
    width: 100px;
    height: 100px;
    position: fixed;
    bottom: 40%;
    font-size: 100px;
    cursor: pointer;
    border: 50px solid transparent;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.prev_arrow {
    left: -40px;
    border-right: 50px solid rgba(255,255,255, 0.066667);
}
.prev_arrow:hover {
    border-right: 50px solid rgba(255,255,255, 0.7);
}

.next_arrow {
    right: -40px;
    border-left: 50px solid rgba(255,255,255, 0.066667);
}
.next_arrow:hover {
    border-left: 50px solid rgba(255,255,255, 0.7);
}

.close_button {
    width: 58px;
    height: 58px;
    border-radius: 29px;
    position: fixed;
    top: 10px;
    right: 10px;
    transform: rotate(45deg);
    cursor: pointer;
}
.close_button:hover > div {
    background: rgba(255,255,255, 0.8);
}
.dl_tr {
    background: rgba(255,255,255, 0.166667);
    height: 58px;
    width: 2px;
    position: absolute;
    top: 0px;
    right: 28px;
}
.tl_c {
    height: 2px;
    width: 28px;
    background: rgba(255,255,255, 0.166667);
    position: absolute;
    left: 0px;
    top: 28px;
}
.c_dr {
    height: 2px;
    width: 28px;
    background: rgba(255,255,255, 0.166667);
    position: absolute;
    left: 30px;
    top: 28px;
}