.clearfix {
    *zoom: 1;
}
.clearfix:before,
.clearfix:after {
    display: table;
    content: "";
    line-height: 0;
}
.clearfix:after {
    clear: both;
}
.dd-list {
    display: block;
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
}
.dd-list .dd-list {
    padding-left: 25px;
}
.dd-collapsed .dd-list {
    display: none;
}
.dd-item,
.dd-empty,
.dd-placeholder {
    display: block;
    position: relative;
    margin: 0;
    padding: 0;
    min-height: 20px;
    font-size: 13px;
    line-height: 20px;
}
.dd-handle {
    display: block;
    /* min-height: inherit; */
    margin: 5px 0;
    cursor: move;
    padding: 10px 10px 10px 10px;
    color: #333;
    text-decoration: none;
    font-weight: 400;
    border: 1px solid #ccc;
    background: #fafafa;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    vertical-align: top;
}
.dd-handle:hover {
    color: #4d7496;
    background: #fff;
}
.dd-item > button {
    display: block;
    position: relative;
    cursor: pointer;
    float: left;
    width: 25px;
    height: 20px;
    margin: 7px 0;
    padding: 0;
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
    border: 0;
    background: transparent;
    font-size: 10px;
    line-height: 1;
    text-align: center;
    font-weight: bold;
}
.dd-item > button:before {
    content: '\f067';
    display: block;
    position: absolute;
    width: 100%;
    text-align: center;
    text-indent: 0;
    font-family: 'FontAwesome';
}
.dd-item > button[data-action="collapse"]:before {
    content: '\f068';
}
.dd-placeholder,
.dd-empty {
    margin: 5px 0;
    padding: 0;
    min-height: 30px;
    background: #ecf1f6;
    border: 1px dashed #4d7496;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}
.dd-empty {
    border: 1px dashed #bbb;
    min-height: 100px;
    background-color: #e5e5e5;
    background-size: 60px 60px;
    background-position: 0 0, 30px 30px;
}
.dd-dragel {
    position: absolute;
    pointer-events: none;
    z-index: 9999;
}
.dd-dragel > .dd-item .dd-handle {
    margin-top: 0;
}
.dd-dragel .dd-handle {
    -webkit-box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, 0.1);
    box-shadow: 2px 4px 6px 0 rgba(0, 0, 0, 0.1);
}
.dd-hover > .dd-handle {
    background: #2ea8e5 !important;
}
/**
 * Nestable Draggable Handles
 */
.dd3-content {
    display: block;
    height: 30px;
    margin: 5px 0;
    padding: 5px 10px 5px 40px;
    color: #333;
    text-decoration: none;
    font-weight: 400;
    border: 1px solid #ccc;
    background: #fafafa;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}
.dd3-content:hover {
    color: #4d7496;
    background: #fff;
}
.dd-dragel > .dd3-item > .dd3-content {
    margin: 0;
}
.dd3-item > button {
    margin-left: 30px;
}
.dd3-handle {
    position: absolute;
    margin: 0;
    left: 0;
    top: 0;
    cursor: move;
    width: 30px;
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
    border: 1px solid #aaa;
    background: #ddd;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}
.dd3-handle:before {
    content: '≡';
    display: block;
    position: absolute;
    left: 0;
    top: 3px;
    width: 100%;
    text-align: center;
    text-indent: 0;
    color: #fff;
    font-size: 20px;
    font-weight: normal;
}
.dd3-handle:hover {
    background: #ddd;
}