Having now learned the benefits of validating our HTML code, let's now broach the subject of CSS. And though CSS is not mandatory to create a web page, effective visual format of many current web page designs demand it. This would include yours.
Long ago, galaxy far far... the W3 consortium agreed to phase out various on page formatting tags such as <center> </center> and <font> </font> and replace these and many others with a set rules defined by css (cascading style sheets).
Due to the nature of this displacement and other evolutionary changes predicated by the introduction of css, it is important to validate any css pages linked from your HTML to ensure your communications are fluid and sensically rendered.
So again, we take this step seriously and care not if it is or is not part of any official optimization algorithm.
The reason WebsiteAdministrationServices does not use drop down menus on this site is because some older browsers are slow to understand the css used. Many dropdown menues often have long and complicated nested rules which slow browser response times. This is becomming less of an seo issue.
And this validation step will ensure any such code is correctly formatted or any other possible css errors such as incorrectly declared IDs, CLASSes etc.
We recommend the W3C website for this check. They have a vested interest in ensuring their validator is current and timely tests for many other known css irregularities.
Locate the internet path to your .css file(s) so we can test your rules used in our next step. Your CSS links can be found between the <head> </head> tags portion of your HTML code.
Smart HTML coders that are seo savvy link their css using the link rel=stylesheet option. Do not use @import, as it is no longer recommended for general use.
<link rel="stylesheet" href="MyCss.css" type="text/css" media="all" title="all" charset="utf-8" />