.bootstrap-select>.dropdown-toggle {
    display: block;
    width: 100%;
    padding: .375rem 2.25rem .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right .75rem center;
    background-size: 16px 12px;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}
.dropdown.bootstrap-select {
    width: 100% !important;
}
.bootstrap-select>.dropdown-toggle>.filter-option>.filter-option-inner>.filter-option-inner-inner{
    color: #212529;
}
.bootstrap-select>.dropdown-toggle:after{
    display: none;
}
.dropdown.bootstrap-select.is-invalid {
    border: 1px solid #dc3545;
    border-radius: 6px;
}