.selector_element {
    display: block;
    margin-left: 30%;
}
.selector_items {
    display: block;
    margin: 5px 0px;
}
.selector_item {
    margin-right: 5px;
    border: dotted 1px silver;
    padding: 2px;
    display: block;
    float: left;
    -moz-border-radius: 6px 6px 6px 6px;
    -webkit-border-radius: 6px;
}
.selector_remove {
    background: red;
    padding: 2px 5px;
    margin: 2px;
    line-height: 2px;
    font-size: 9px;
    font-weight: bold;
    color: white;
    text-decoration: none;
}