Allow only numbers and max 2 digits
HTML
<label for="number">Enter 2 digits:</label>
<input type="number" class="js-number" min="0" max="99">
JavaScript
$(".js-number").numeric();
<label for="number">Enter 2 digits:</label>
<input type="number" class="js-number" min="0" max="99">
$(".js-number").numeric();