.custom-select {
    appearance: none; /* Hides default arrow in modern browsers */
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('https://bual.asia/assets/products/product-dropdown-arrow-dark.svg');
    background-repeat: no-repeat;
    background-position: right 2.5rem center;
    background-size: 1em;
    padding-left: 2rem;
}