title: How to use npm start to open localhost
body: <p>I have just finished making a website with html, css, js and wanted to open it with npm start. Granted, I know if I click the html, the webpage will open. But I would like to use npm. What do I need to install to npm and do I need to change the start to open the site locally? I have very little knowledge with this, any help is appreciated.</p>
  <p>Edit: I already have node.js installed</p>