.date-dropdowns select {
    width: 32%;
    display: inline-block;
    height: calc(1.47em + 1rem + 2px);
    padding: 0.5rem 0.875rem;
    /*font-size: 0.8125rem;*/
    font-weight: 400;
    line-height: 1.47;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #E5E5E5;
    border-radius: 4px;
    box-sizing: border-box;
    -webkit-transition: border-color 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-box-shadow 0.15s ease-in-out;
}

.date-dropdowns select + select {
    margin-left: 2%;
}