.rwmb-background-row {
    margin-bottom: 5px;
}
.rwmb-background-wrapper .wp-picker-container {
    position: relative;
    display: inline-block;
    vertical-align: top;
}
.rwmb-background-wrapper .wp-picker-holder {
    position: absolute;
    z-index: 9;
    min-width: 255px;
}
.rwmb-background-image {
    display: inline-block;
    vertical-align: top;
}