.input-group > .dropdown {
    background: #fff url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='4' height='5' viewBox='0 0 4 5'%3e%3cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") right 0.75rem center/8px 10px no-repeat;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    appearance: none;
    display: flex;
    flex-flow: column;
}

.input-group > .dropdown > .btn {
    padding-right: 1.75rem;
    text-align: left;
    margin: -1px;
}

.input-group > .dropdown:not(:first-child),
.input-group > .dropdown:not(:first-child) > .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}