.app-header{box-shadow:rgba(145,158,171,0.2) 0px 0px 2px 0px,rgba(145,158,171,0.12) 0px 12px 24px -4px}
.pre-image {width:20%; height:100px; float:left;padding:10px;text-align: center;border: 1px dashed #eee;margin:5px;position: relative;cursor: grab;}
.pre-image .image img{max-width:100%;max-height:80px;}
.pre-image .image_delete {max-width:100%;max-height:80px;margin:5px;display:none;position: absolute;bottom: 15px;
    left: 20px;
    color: #fff;
    background-color: #000;}

.pre-image:hover > .image_delete {
    display: block;
} 

.pre-image:first-child {width:30%;height:210px;border: 1px dashed;}
.pre-image:first-child .image img{max-width:100%;max-height:96px;}
.pre-image:first-child .image_title::after{content: "Main Image";}
.option-block{border:1px dashed #ccc;padding:20px;margin:10px auto;}
.tab {
    padding: 7px 20px;
    margin: 10px;
    display: inline-block;
    border: 1px solid #ccc;
    box-shadow: 2px 2px #eee;
    border-radius: 5px;
    color: #000;
}

.t-active {
    background-color: #5D87FF;
    color: #fff;
    box-shadow: 2px 2px #a4bbff;
    border: 1px solid #3d67e1;
}