IN THIS CHAPTER
Tidying your HTML code
Validating your code
Additional testing and validation
After creating your documents, it is important to test them to ensure that visitors to your site will not encounter any unforeseen problems. This chapter covers the basics of testing your code, including what tools are at your disposal.
One important step while developing HTML documents is to keep the code tidy. Tidy code is code that is kept orderly with logical line breaks and intelligent indentation. Although this doesn't seem like a crucial issue, it takes only small snippets of code to see the difference, as illustrated in Listings 23-1 and 23-2.
Example 23-1. Untidy code
<table border="1" rules="all"> <tr><td><img src="./images/JillHennessy.jpg" width="100px" height="150px" alt="Jill" /><br />Jill Hennessy</td><td>Jill is the founder of the Oasis of Tranquility and its executive officer. She oversees the business side of the spa and operates as its chief recruiting officer. Jill has degrees in business and cosmetology.</td></tr><tr><td><img src="./images/SandraBrown.jpg" width="100px" height="150px" alt="Sandra" /><br />Sandra Brown</td><td>Sandra is the co-founder of the Oasis and its operating officer. She is responsible for the day-to-day operation of the spa and management of its employees. Sandra has journalism and management degrees and several accreditations from various
cosmetology schools.</td></tr><tr><td><img ...