Writing HTML code may be difficult, and when you run across problems, it’s easy to become overwhelmed. To troubleshoot HTML code, on the other hand, does not have to be a time-consuming task; here are five basic strategies to help you rapidly find and repair the problem.
Validate Your Code with Validators
Using validators is an easy way to help you quickly and accurately troubleshoot HTML coding. Validators are tools that let you check your syntax for correctness, and can easily spot mistakes in HTML code formatting. Validators typically display the exact line number of an error in a piece of code, allowing you to more efficiently locate the source of the problem.
Exploring Chrome Developer Tools
Improve Readability and Troubleshoot Errors with Underlining & Color Coding HTML Elements
The DOM Tree View in Chrome Developer Tools now has code color, with components underlined in blue. This allows you to rapidly detect and spot HTML elements with high precedence when they should have low precedence, as well as tags with mismatched openers and closes. Color coding also lets you know which CSS rules are being applied to an element and where they are on the page. This allows for faster and more effective error troubleshooting.
Utilizing Browser Compatibility Testing Tools
If a tag or CSS rule isn’t working properly in your browser, you may utilize browser compatibility testing tools to guarantee that your HTML code is cross-platform compatible. For example, employing a desktop HTML page checker will tell you whether the page is compatible with other operating systems such as Firefox, Safari, and Mac OS. You may also use online validators such as CSS Validator and HTML Validator to check for errors in tags or CSS rules.
Analyzing Document Object Model (DOM) via HTML Tree Structure Representation
By storing the complete page in a hierarchy of objects called nodes, DOM provides an enhanced method of examining HTML code. It displays all of the components from the HTML code, together with their attributes, and is a quick approach to find mistakes on a single page. To begin debugging, utilize third-party tools such as Firebug, Google Chrome Developer Tools, or Safari Develop Menu to open an HTML Tree Structure around your page.
To Troubleshoot in HTML code also head over to this Mozilla page.