Introduction

This is combination with CodeBlock.

document.querySelector("h1").style.color = "red";

Open editor at first.

Note

• <script src=...></script> does not work in environment vanilla
  • Use enviroment: parcel or use externalResources option
  • Styles and fonts in the head tag of index.html are not reflecting for react. · Issue #32 · codesandbox/sandpack