Browser developer tools let you view and edit HTML, CSS, and JavaScript in real time. Perfect for learning how websites work or debugging issues on your own site.
You can inspect any element on a page, test CSS changes instantly, and spot console errors. Useful when you need to troubleshoot website errors or fix redirect errors by checking network requests.
Note these tools only show client-side code. For server-side issues like PHP errors, you’ll need to check server access logs instead.
You can access inspect element (and more) on Chrome in a few different ways including:
F12 key or a combination press of CTRL + Shift + C.You can swap between the different tabs including elements, console and network, all of which can help learn and diagnose issues. The example below shows the element window in Chrome.

Similarly, you can right-click on a website element and select “Inspect” to open the developer tools. Again, much like Chrome you can also use the keyboard shortcut use the keyboard shortcut CTRL + Shift + C.
As a Chromium-based browser Microsoft Edge is almost identical to Google Chrome, you can access the development tools and inspect elements with the following:

F12 function key which will open all the development tools.CTRL + Shift + C. 
Using any of these options will allow you to cycle through the different development tool panes letting you manipulate and learn more about the site, including showing any issues.
As a Chromium based browser Opera has similar tools to Edge and Chrome but has slightly different key bindings. You can access the developer tools and inspect element in Opera by:
Ctrl + Shift + I.Developer tools are fundamental to modern web design. If you’re looking to expand your skills, check out these web design resources for more learning material.
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