JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
        <li class="bold red" random="23">Notebook</li>
        <li id=li1>Jello <input id='btn1' type="submit" value='-'/></li>
        <li>Spinach</li>
        <li>Rice</li>
        <li>Birthday Cake</li>
        <li>Candles</li>
</ul>

JavaScript

var btn = document.getElementById('btn1');
btn.onclick = function () {
    document.getElementById('li1').remove();
    this.remove();
};