1. Installing a code editor

Suggest to use VS Code because it is light-weight and fast.

Visit https://code.visualstudio.com/ download and install VS Code.

2. Launching VS code

Create project folder,right-click and choose "Open with Code".

3. Creating new HTML file

Right-click and choose new file, type the name "index.html".

4. Editing the HTML file

Write some contents in the HTML file, after that, save with CTRL+S(Press both keys at the same time).

5. Viewing in Browser

Double-click the HTML file, or open a browser and drag the file into the browser.