JSFiddle - React, Tailwind, and code Playground

HTML

<input type="number" value="0.00" min="0.00" step="0.05">

JavaScript

console.clear();
document.querySelector('input[type=number]')
.addEventListener('change', function () {
    var parts = this.value.split('.');
    if (parts.length < 2) {
        this.value += '.00';
    } else if (parts[1].length < 2) {
        this.value += '0';
    }
});