.versions-select {
    display: table;
    width: 100%;
    height: 50px;
    padding: 0px 12px;
}

.versions-select > div {
    display: table-cell;
    text-align: center;
    vertical-align: middle;
}

.versions-select select {
    height: 40px;
    padding: 0 10px;
    margin: 0;
    vertical-align: top;
    font-size: 16px;
    box-sizing: border-box;
    font-weight: lighter;
    color: #333;
    border: 1px solid #aaa;
    width: 100%;
    vertical-align: middle;
    cursor: pointer;
    outline: none;
}