boards/static/css/base.css

.ui-button {
   display: none;
}

.ui-dialog-content {
    padding: 0;
    min-height: 0;
}

.mark_btn {
    cursor: pointer;
}

.img-full {
    position: fixed;
    z-index: 9999;
    background-color: #CCC;
    border: 1px solid #000;
    cursor: pointer;
}

.strikethrough {
    text-decoration: line-through;
}

.post_preview {
    z-index: 300;
    position:absolute;
}