DevTools offers many features, but the most notable ones are:
The document structure (HTML) generated at page load and load time.
What CSS applies to specific HTML elements and elements inherited from parent elements.See viewport size, element size, padding, margins, borders, and more.
Everything on the page can be modified except the running script.
Make changes to the saved code after refreshing the page (though not by default)
All changes are client-side - meaning, whatever changes you make will only be visible to you until you refresh the page.
Test without caching and simulating slower network speeds.
Tools to measure and score page performance and provide workarounds.
This is a very short list, but it covers some of the telephone number list more notable features, mostly the ones we'll be covering.
Related: How to Create Your First Chrome Extension
Why do you need DevTools and what are the use cases?
For developers, this is obvious, but what about non-developers? Well, here are some neat tips and tricks to get you closer to power user status. Site owners typically find issues on the site, ask a question or two, and sometimes receive a small piece of code to "paste" to fix the problem. One of the ways for developers to test such code snippets is to apply them directly to telephone number list development tools. It's also a way to give developers a nice preview of what the look and feel will look like.
Apply CSS code
The first and most common use of DevTools is to modify and apply CSS. CSS is what defines the look of a page, it's aesthetic. To do this, you just need to point to the element you want to style, right-click and select "Inspect"
The same is true for most other browsers, although the menu item text may vary slightly. Once done, you will see the DevTools open and directly select the desired element. Here you will see the two main parts of the development tools. HTML and CSS sides (left and right):
It can be a little tricky to find your way around the HTML section, but don't worry, DevTools will highlight elements when you hover over them on the left panel. Once you find what you want, you can write styles on the right. Some have been added. So let's change the background to read and see how it looks:
As you type, the styles in the page will update immediately. You can write any CSS here and it will be applied as per the styles already on the page. If you press at the end of the rule (under Width) it will start adding the new style. Alternatively, you can write them at the top where it says "element.style". Then, if you want to share with developers, you can just select the code and copy-paste. Pro tip, also grab the "selector" for styles. This is ".RNNXgb" from the screenshot above. This will tell the developer on which element to add the styles.