.custom-select {
    display: inline-block;
    width: 100%;
    height: calc(2.25rem + 2px);
    padding: 0.375rem 1.75rem 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    vertical-align: middle;
    background: #ffffff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") no-repeat right 0.75rem center/8px 10px;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.075);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

    .custom-select:focus {
        border-color: #80bdff;
        outline: 0;
        box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.075), none;
    }

        .custom-select:focus::-ms-value {
            color: #495057;
            background-color: #ffffff;
        }

    .custom-select[multiple], .custom-select[size]:not([size="1"]) {
        height: auto;
        padding-right: 0.75rem;
        background-image: none;
    }

    .custom-select:disabled {
        color: #6c757d;
        background-color: #e9ecef;
    }

    .custom-select::-ms-expand {
        display: none;
    }

    .custom-select:-moz-focusring {
        color: transparent;
        text-shadow: 0 0 0 #495057;
    }

.custom-select-sm {
    height: calc(1.8125rem + 2px);
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
    padding-left: 0.5rem;
    font-size: 75%;
}

.custom-select-lg {
    height: calc(2.875rem + 2px);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    padding-left: 1rem;
    font-size: 125%;
}