<select class="form-select mb-3" aria-label="Default select example">
    <option selected>Open this select menu</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select> 

  <select class="form-select rounded-pill mb-3" aria-label="Default select example">
    <option selected>Search for services</option>
    <option value="1">Information Architecture</option>
    <option value="2">UI/UX Design</option>
    <option value="3">Back End Development</option>
</select> 

 <select class="form-select" aria-label="Disabled select example" disabled>
    <option selected>Open this select menu (Disabled)</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select> 

 <select class="form-select" multiple aria-label="multiple select example">
    <option selected>Open this select menu (multiple select option)</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select> 

 <select class="form-select" size="3" aria-label="size 3 select example">
    <option selected>Open this select menu (select menu size)</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Four</option>
    <option value="5">Five</option>
</select> 

 <select class="form-select form-select-sm  mb-3" aria-label=".form-select-sm example">
    <option selected>Open this select menu</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select> 

 <select class="form-select mb-3" aria-label=".form-select-lg example">
    <option selected>Open this select menu</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select> 

 <select class="form-select form-select-lg" aria-label=".form-select-lg example">
    <option selected>Open this select menu</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
</select>