Validating Your HTML Code for Best Practices
Writing HTML requires attention to every tag, bracket, and attribute. For beginners, it's easy to miss small details and that's why HTML validators exist.
Validators check your code for syntax errors and help you fix issues before they cause problems.
Validators do not check meaning (semantics). They focus only on whether your markup follows HTML rules:
- Correct HTML syntax;
- Following HTML standards (like HTML5);
- Correct tag names and spelling;
- Correct use of attributes;
- Properly opened and closed tags;
- Correct nesting (elements placed in the right order).
Let's use a popular online validator called the W3C Markup Validation Service to practice validation. Open the following link in a new tab by clicking on it: Validator
Now, let's validate a piece of code together. Copy the code provided below for testing purposes:
index.html
Paste the code into the validator's window between the opening and closing <body> tags. Then, click the "Check" button.
Errors the validator identifies should be fixed in the order they are listed. While warnings are optional to correct, analyzing them and ensuring high-quality markup is good practice.
Let's fix all the errors in the code example:
index.html
By correcting the tag order and closing all elements properly, the code becomes valid and easier for browsers to interpret.
Thanks for your feedback!
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Writing HTML requires attention to every tag, bracket, and attribute. For beginners, it's easy to miss small details and that's why HTML validators exist.
Validators check your code for syntax errors and help you fix issues before they cause problems.
Validators do not check meaning (semantics). They focus only on whether your markup follows HTML rules:
- Correct HTML syntax;
- Following HTML standards (like HTML5);
- Correct tag names and spelling;
- Correct use of attributes;
- Properly opened and closed tags;
- Correct nesting (elements placed in the right order).
Let's use a popular online validator called the W3C Markup Validation Service to practice validation. Open the following link in a new tab by clicking on it: Validator
Now, let's validate a piece of code together. Copy the code provided below for testing purposes:
index.html
Paste the code into the validator's window between the opening and closing <body> tags. Then, click the "Check" button.
Errors the validator identifies should be fixed in the order they are listed. While warnings are optional to correct, analyzing them and ensuring high-quality markup is good practice.
Let's fix all the errors in the code example:
index.html
By correcting the tag order and closing all elements properly, the code becomes valid and easier for browsers to interpret.
Thanks for your feedback!
