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Browser development tools
Today, almost all web browsers are equipped with special tools for testing website responsiveness , thanks to which you can easily check how a website behaves on screens of different sizes.
website-responsiveness2
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Photo 1. Device Toolbar built into the Chrome browser developer tools allows you to check how a website behaves on the screen of a specific device - in this case, the iPhone 14 Pro Max.
You can also easily check the responsiveness of your website by reducing or enlarging the window of the browser you are using.