create select in css code example

Example: how to add a selection in css

<div class="custom-select-wrapper">
    <div class="custom-select">
        <div class="custom-select__trigger"><span>Tesla</span>
            <div class="arrow"></div>
        </div>
        <div class="custom-options">
            <span class="custom-option selected" data-value="tesla">Tesla</span>
            <span class="custom-option" data-value="volvo">Volvo</span>
            <span class="custom-option" data-value="mercedes">Mercedes</span>
        </div>
    </div>
</div>