Book Image

Professional CSS3

By : Piotr Sikora
Book Image

Professional CSS3

By: Piotr Sikora

Overview of this book

CSS is the preferred technology to design modern web pages. Although CSS is often perceived as a simple language, applying modern styles to web pages with CSS and maintaining the code for larger websites can be quite tricky. We will take you right from understanding CSS to designing high-quality web pages in CSS3. We'll quickly take you through CSS3's features, and show you how to resolve common issues so you can build your basic framework. Finally, you will learn about code architecture and CSS methodologies used in scalable apps and you'll explore the various new features of CSS3, such as FlexBox, to help you create the most modern layout methodologies. By the end of the book, you will be a master at creating pure CSS web pages and will know sophisticated web design techniques, giving you an edge over other web designers.
Table of Contents (21 chapters)
Professional CSS3
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Dealing with opacity


Opacity occurs in projects very often. For example, when you are creating some model windows on a page or lightbox-like gallery. It is used on the layer added under the main window (overlay element), which, in most cases, has added an onclick event listener in JavaScript, which hides the window upon clicking. How can you create this effect? How was it done in the past? Let's start with a simple HTML code:

<header> Header </header>
<main> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto dolore doloremque dolores iure laudantium magni mollitia quam ratione, temporibus ut? Aperiam necessitatibus perspiciatis qui ratione vel! Adipisci eligendi sint unde. </main>
<footer> Footer </footer>

SASS:

header, footer, main
  padding: 50px
  text-align: center

header, footer
  background: red

main
  background: green

Compiled:

header, footer, main {
    padding: 50px;
    text-align: center;
}

header, footer {
    background: red...