Free Online Tools

Here’s a tip for both web designers and web developers – beginners and advanced.  After creating a new page or even after making a small change to a current page – always, always, always validate the page. 

You can use validation tools that are built into development environments like Dreamweaver, but I recommend the W3C validation tools. 

W3C Markup Validation Service.
http://validator.w3.org/

W3C CSS Validation Service
http://jigsaw.w3.org/css-validator/

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