Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Understanding Cascading Style Sheets (CSS)

From: Creating a First Web Site with Dreamweaver CS4

Video: Understanding Cascading Style Sheets (CSS)

Having a really good understanding of Cascading Style Sheets will really open up a lot of design possibilities for you, because CSS is really powerful. CSS is Cascading Style Sheets. So you'll hear me say CSS instead of Cascading Style Sheets. But it really is a style sheet language used to describe the design of an HTML document. In fact, you can control all the visual aspects of the content using CSS. So it goes beyond what HTML styles can do.

Understanding Cascading Style Sheets (CSS)

Having a really good understanding of Cascading Style Sheets will really open up a lot of design possibilities for you, because CSS is really powerful. CSS is Cascading Style Sheets. So you'll hear me say CSS instead of Cascading Style Sheets. But it really is a style sheet language used to describe the design of an HTML document. In fact, you can control all the visual aspects of the content using CSS. So it goes beyond what HTML styles can do.

Again modifying the fonts, the colors, the layout, position of items, it gives you a lot of control. So that's one huge, powerful aspect of CSS. Another big advantage is the ability to separate the content from the design. So you could have an HTML page that has HTML content on it. So all the copy and then you can have CSS on that same page that will control the design of that content, how that content is being displayed.

That's what known as an internal CSS if the CSS is on the page itself. But you can also have an external CSS file that exists as a separate file outside of the HTML and what the HTML does is it points to that CSS and applies that style to it. But again, it's a separate file. This gets to be really powerful when you get multiple pages involved like a website. It gives you site-wide consistency across the board. Reduces any sort of complexity or repetition.

So all your styles exist in one location. And again, if all your styles exist in one location, it's going to make your file size smaller. And sure enough, if you change this CSS style such as some sort of heading tag or a paragraph font, say for instance, if you have a website you can change the header tag to a different color and it will propagate and change throughout the entire site. So again, if you have a site with 100 pages it gets to be really helpful. So I really encourage you to use CSS for its ability to make and change multiple pages.

All right, one example and really this consists of two parts, the basic syntax is either a selector, so you can have a selector as part of your CSS, and then your declaration and that's what makes up a CSS rule. So your selector identifies the element, such as say a paragraph and then your declaration is going to have your property and value combos. You basically are going to be able to change your paragraphs. Wherever you use that paragraph, it's going to change it across the board.

And the great thing about Dreamweaver is it makes creating CSS styles easy. In fact, it gives you dialog boxes, so you don't have to remember all the code to write, and you can use a dialog box and modify your various visual elements from one location and again have it propagate throughout the site because it is CSS. And it really enables you to leverage all the power involved in CSS.

Show transcript

This video is part of

Image for Creating a First Web Site with Dreamweaver CS4
Creating a First Web Site with Dreamweaver CS4

32 video lessons · 51556 viewers

Paul Trani
Author

 

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now "Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Creating a First Web Site with Dreamweaver CS4.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.