Using the HTML and CSS Validation Services

Go to http://validator.w3.org/

Three ways to validate

• There are three ways to validate: – Providing the URI (uniform resource identifier)

basically the web address if the file has been posted to a site

– Uploading the file to the Validation Service– Pasting the page code into a text box on the

validation Server

• We will show here the second method above

Choose the File Upload tab and then click on the Browse button

Use the dialog box to locate and “Open” your file

Once the file path has been specified, click the Check button

Result of XHTML validation

Now go to the CSS Validation Service at http://jigsaw.w3.org/css-validator/

Again, we chose to upload by browsing for the file

Click on More option and then choose All from the Warnings drop-down list

Click the Check button

Result of CSS Validation