console 命令行工具 X clear

console

let headings = document.querySelectorAll('h1,h2,h3');

<h1>account</h1>
<h2>acc01</h2>
<h2>acc02</h2>
<h2>acc03</h2>
<h1>acc04</h1>
<h2>authorize</h2>
<h2>authorize10</h2>
<h2>authorize20</h2>

*{
    margin: 0;
    padding: 0;
}