div.rtb-set-selector-container {
    font-family: Roboto, sans-serif, Helvetica, Arial, sans-serif;
    display: -webkit-box; /*chrome, safary*/
    display: -moz-box; /*firefox*/
    flex-direction: row;
    /*flex-wrap: wrap;*/
    margin-top: -3px;
}

div.rtb-set-selector-container div:hover {
    cursor: pointer;
}

div.rtb-set-selector-container > div {
    background-color: #fff;
    border: 1px solid #ddd;
    margin: 3px 0 0 0;
    padding: 3px 8px;
    position: relative;
    white-space: nowrap;
    /*border-radius: 3px;*/
    min-width: 70px;
    text-align: center;
    -webkit-user-select: none;  /* Chrome all / Safari all */
    -moz-user-select: none;     /* Firefox all */
    -ms-user-select: none;      /* IE 10+ */
    user-select: none;
}

div.rtb-set-selector-container > div:not(:first-child) {
    border-left: none;
}

div.rtb-set-selector-container > div > span.rtb-spacer {
    position: relative;
    visibility: hidden;
}

div.rtb-set-selector-container > div > span:not(.rtb-spacer) {
    width: 100%;
    position: absolute;
    padding: inherit;
    top: 0;
    left: 0;
    color: rgb(48, 48, 48);
}

div.rtb-set-selector-container > div.active,
div.rtb-set-selector-container > div.active > span,
div.rtb-set-selector-container > div > span.rtb-spacer {
    /*font-weight: bold;*/
    background-color: #ddd;
    color: #000;
}