JSFiddle - React, Tailwind, and code Playground

HTML

<input class="number" type="text" value="" />

<input type="text" value="44" />

JavaScript

$('.number').on('keypress',function (event) {
    if ((event.which != 46 || $(this).val().indexOf('.') != -1) && (event.which < 48 || event.which > 57)) {
        event.preventDefault();
    }
    var input = $(this).val();
    if ((input.indexOf('.') != -1) && (input.substring(input.indexOf('.')).length > 2)) {
        event.preventDefault();
    }
});