October 2006
Beginner to intermediate
352 pages
9h 33m
English
Content preview from Learning JavaScriptBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Display, Visibility, and Opacity
An interesting thing about web-page elements: they can be completely transparent and invisible, but still affect the layout of the page. The reason is that invisibility/transparency and display/lack of display are not the same thing in CSS.
An element can be hidden by setting visibility to
hidden, or shown by setting visibility to visible. The property can also be set to
inherit, and the element inherits its
visible property setting from the
containing element.
As demonstrated in Chapter 11, an
element’s opacity can also be altered until it is completely
transparent, making it invisible. However, just as with the visibility property, the element still
maintains its position within the page flow.
If an element’s display
property is set to none, it’s also
hidden; however, any effect the element has on the page layout is also
removed. To make it visible, you have a couple of options. You can make
it visible and have it act as a
block-level element (line breaks before and after the element) by
setting display to block. If you don’t want block behavior, you
can set display to inline, and it’s displayed in-place and not as
a block.
In addition, you can display the element using the default display
characteristics of several HTML elements, which include inline-block, table, table-cell, list-item, compact, run-in, etc. It’s a rather powerful attribute,
and one worth playing around with until you’re comfortable with its
modifying results.
Right Tool for Right ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.