#list ul { list-style: none; padding-left: 20px; }
#list li {
    margin: 4px;
    padding: 8px;
    background: #eee;
    border: 1px solid #ccc;
    cursor: move;
}
.placeholder {
    border: 1px dashed #999;
    background: #f9f9f9;
    height: 2em;
}