.mygallery, .gallery_list_folder, .gallery_list_img {overflow: hidden;}
.gallery_navigat{
margin-bottom: 10px;
}
.folder, .fancybox{
float: left;
width: 180px;
background-color: #fff; 
border: 1px solid #aaa;
box-sizing: border-box;
font-weight: bold;
text-align: center;line-height: 1;
margin: 0px 5px 5px 0px; padding: 5px;
}
.folder img, .fancybox img{width: 100%; height: 110px; border: 0; margin: 0px; padding: 0px;}
.error{background-color: red; font: bold 14px Arial, sans-serif; color: white; padding: 10px;}
@media screen and (max-width: 768px) {
    .folder, .fancybox{
        width: 100%;
        margin: 0px 0px 10px 0px; padding: 10px;
    }
    .folder img, .fancybox img{width: 100%; height: auto;}
}