Just like spring cleaning a house, the html code of your
web pages should get periodic cleaning as well. Over
time, as changes and updates are made to a web page, the
code can become littered with unnecessary clutter,
slowing down page load times and hurting the efficiency
of your web page. Cluttered html can also seriously
impact your search engine ranking.
This is
especially true if you are using a WYSIWYG (What You See
Is What You Get) web design package such as FrontPage or
Dreamweaver. These programs will speed up your web site
creation, but they are not that efficient at writing
clean html code.
We will
be focusing this discussion on the actual html coding,
ignoring other programming languages that may be used in
a page such as JavaScript. In the code examples I
will be using round brackets ( ) instead of correct html
angle brackets < > so that the code examples will
display properly in this newsletter.
Up
until recently when coding a page in HTML we would be
using tags such as the (font) tag and (p) paragraph
tags. Between these tags would be our page content,
text, images and links. Each time a formatting change
was made on the page new tags were needed with complete
formatting for the new section. More recently we have
gained the ability to use Cascading Style Sheets,
allowing us to write the formatting once and then refer
to that formatting several times within a web page.
In
order to speed up page load times we need to have fewer
characters on the page when viewed in an html editor.
Since we really do not want to remove any of our visible
content we need to look to the html code. By cleaning up
this code we can remove characters, thereby creating a
smaller web page that will load more quickly.
Over
time HTML has changed and we now have many different
ways to do the same thing. An example would be the code
used to show a bold type face. In HTML we have two main
choices, the (strong) tag and the (b) tag. As you can
see the (strong) tag uses 5 more characters than the (b)
tag, and if we consider the closing tags as well we see
that using the (strong)(/strong) tag pair uses 10 more
characters than the cleaner (b)(/b) tag pair.
This
is our First Principle of clean HTML code: Use the
simplest coding method available.
HTML
has the ability of nesting code within other code. For
instance we could have a line with three words where the
middle word was in bold. This could be accomplished by
changing the formatting completely each time the visible
formatting changes. Consider this code:
(font
face="times")This(/font)
(font
face="times")(strong)BOLD(/strong)(/font)
(font
face="times")Word(/font) This takes up 90 characters.
This is
very poorly written html and is what you occasionally
will get when using a WYSIWYG editor. Since the (font)
tags are repeating the same information we can simply
nest the (strong) tags inside the (font) tags, and
better yet use the (b) tag instead of the (strong) tag.
This would give us this code (font face="times)This (b)BOLD(/b)
Word(/font), taking up only 46 characters.
This
is our Second Principle of clean HTML code: Use
nested tags when possible. Be aware that WYSIWYG editors
will frequently update formatting by adding layer after
layer of nested code. So while you are cleaning up the
code look for redundant nested code placed there by your
WYSIWYG editing program.
A big
problem with using HTML tags is that we need to repeat
the tag coding whenever we change the formatting. The
advent of CSS allows us a great advantage in clean
coding by allowing us to layout the formatting once in a
document, then simply refer to it over and over again.
If we
had six paragraphs in a page that switch between two
different types of formatting, such as headings in Blue,
Bold, Ariel, size 4 and paragraph text in Black, Times,
size 2, using tags we would need to list that complete
formatting each time we make a change.
(font
face="Ariel" color="blue" size="4")(b)Our
heading(/b)(/font)
(font
face="Times color="black" size="2")Our paragraph(/font)
(font
face="Ariel" color="blue" size="4")(b)Our next
heading(/b)(/font)
(font
face="Times color="black" size="2")Our next
paragraph(/font)
We
would then repeat this for each heading and paragraph,
lots of html code.
With
CSS we could create CSS Styles for each formatting type,
list the Styles once in the Header of the page, and then
simply refer to the Style each time we make a change.
(head)
(style
type="text/css")
(!--
.style1
{
font-family: Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 24px;
}
.style2
{
font-family: "Times New Roman", Times, serif;
font-size: 12px;
}
--)
(/style)
(/head)
(body)
(p
class="style1")Heading(/p)
(p
class="style2")Paragraph Text(/p)
(/body)
Notice
that the Styles are created in the Head section of the
page and then simply referenced in the Body section. As
we add more formatting we would simply continue to refer
to the previously created Styles.
This
is our Third Principle of Clean HTML Code: Use CSS
styles whenever possible. CSS has several other
benefits, such as being able to place the CSS styles in
an external file, thereby reducing the page size even
more, and the ability to quickly update formatting
site-wide by simply updating the external CSS Style
file.
So with
some simple cleaning of your HTML code you can easily
reduce the file size and make a fast loading, lean and
mean web page.
About The Author
George Peirson is a successful Entrepreneur and Internet
Trainer. He is the author of over 30 multimedia based
tutorial training titles covering such topics as
Photoshop, Flash and Dreamweaver. To see his training
sets visit
http://www.howtogurus.com. Article copyright 2005
George Peirson