Select: Size Variation Width Height

<p class="input">
    <select name="" class="mini">
        <option value="">1</option>
        <option value="">2</option>
        <option value="">3</option>
        <option value="">4</option>
        <option value="">5</option>
    </select>
</p>

<br><br>

<p class="input">
    <select name="" class="small">
        <option value="">1</option>
        <option value="">2</option>
        <option value="">3</option>
        <option value="">4</option>
        <option value="">5</option>
    </select>
</p>

<br><br>

<p class="input">
    <select name="">
        <option value="">1</option>
        <option value="">2</option>
        <option value="">3</option>
        <option value="">4</option>
        <option value="">5</option>
    </select>
</p>

<br><br>

<p class="input">
    <select name="" class="large">
        <option value="">1</option>
        <option value="">2</option>
        <option value="">3</option>
        <option value="">4</option>
        <option value="">5</option>
    </select>
</p>

<br><br>

<p class="input">
    <select name="" class="big">
        <option value="">1</option>
        <option value="">2</option>
        <option value="">3</option>
        <option value="">4</option>
        <option value="">5</option>
    </select>