Open Safari, Chrome, or Firefox on your Mac
Go to the webpage you want to edit
Right-click the page and choose Inspect, Inspect Element, or Developer Tools
If needed, enable the Develop menu in Safari by going to Safari > Settings > Advanced > Show Develop menu in menu bar
In the Developer Tools panel, select the Elements or Inspector tab
Click the element you want to change
Double-click the text or HTML you want to edit
Type your changes
Press Enter or Return to apply the edit
To change styles, edit the CSS in the Styles panel
To test temporary changes, refresh the page to restore the original content
To save changes permanently, edit the website’s source files or use a local development environment