Book Image

Responsive Web Design with HTML5 and CSS3

By : Ben Frain
Book Image

Responsive Web Design with HTML5 and CSS3

By: Ben Frain

Overview of this book

Tablets, smart phones and even televisions are being used increasingly to view the web. There's never been a greater range of screen sizes and associated user experiences to consider. Web pages built to be responsive provide the best possible version of their content to match the viewing devices of not just today's devices but tomorrow's too.Learn how to design websites according to the new "responsive design"ù methodology, allowing a website to display beautifully on every screen size. Follow along, building and enhancing a responsive web design with HTML5 and CSS3. The book provides a practical understanding of these new technologies and techniques that are set to be the future of front-end web development. Starting with a static Photoshop composite, create a website with HTML5 and CSS3 which is flexible depending on the viewer's screen size.With HTML5, pages are leaner and more semantic. A fluid grid design and CSS3 media queries means designs can flex and adapt for any screen size. Beautiful backgrounds, box-shadows and animations will be added ñ all using the power, simplicity and flexibility of CSS3.Responsive web design with HTML5 and CSS3 provides the necessary knowledge to ensure your projects won't just be built "right" for today but also the future.
Table of Contents (16 chapters)
Responsive Web Design with HTML5 and CSS3
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

New CSS3 color formats and alpha transparency


So far, CSS3 has given us new powers of selection and the ability to add custom typography to our designs. Now, we'll look at ways that CSS3 allows us to work with color that were simply not possible before.

Firstly, CSS3 allows us to use new methods, such as RGB and HSL, for declaring color . In addition, it enables us to use those two methods alongside an alpha channel (RGBA and HSLA respectively).

RGB color

RGB (Red, Green, and Blue) is a coloring system that's been around for decades. It works by defining different values for the red, green, and blue components of a color. For example, the red color used for the odd numbered navigation links on the And the winner isn't... site is currently defined in the CSS as a hex (hexadecimal) value, #fe0208:

nav ul li:nth-child(odd) a {
  color: #fe0208;
}

However, with CSS3, it can equally be described as an RGB value:

nav ul li:nth-child(odd) a {
  color: rgb(254, 2, 8);
}

Most image editing applications...