Utilizing jQuery for Efficient CSS Styling

Extracted from Pro PHP and jQuery:

■ Tip: The values returned are CSS shorthand properties. Another advantage of using jQuery is the ability to set CSS properties with shorthand notation, which cannot be done with basic JavaScript.

Referenced in jQuery API Reference:

Certain shorthand CSS properties (such as margin, background, border) are not compatible. For instance, if you wish to retrieve the rendered margin value, you should use $(elem).css('marginTop') and $(elem).css('marginRight'), and so forth.

I find it puzzling that setting CSS shorthand is possible but reading it isn't. I will resort to utilizing a stylesheet, however, the question still remains for academic purposes.

Answer №1

When utilizing shorthand CSS properties, they are transformed and interpreted into individual styles.

However, the reverse process cannot be achieved without specific programming.

For instance, it is possible to program a reader to recognize a shorthand property like margin and output the combined values of margin-top, margin-right, margin-bottom, and margin-left.

Nevertheless, there exist multiple combinations for shorthand properties. For example, setting margin: 10px 20px will still apply all four margins, but retrieving it might display as 10px 20px 10px 20px, which may not match the original input.

In essence, shorthand properties condense into one set of individual properties, whereas one set of individual properties can yield various shorthand representations.

Answer №2

The jquery css shorthands aren't functioning correctly when accessed using the getter method .css(propertyName) technique.

You are able to easily establish css regulations with shorthand like this:

$('div').css("border", "2px solid Black");

DEMO

Answer №3

To see the effects of CSS shorthand properties in action, open up the console on Firefox or Chrome and enter the following commands:

jQuery(".post-text"); // This selects the post containing this answer
jQuery(".post-text").css("margin"); // Returns nothing with shorthand notation
jQuery(".post-text").css("margin-top"); // Shows the actual margin value
jQuery(".post-text").css("margin","10px 10px 10px 10px"); // Sets all margins using shorthand notation
jQuery(".post-text").css("margin-top"); // Updated margin-top value
jQuery(".post-text").css("margin"); // Still returns nothing

This example demonstrates that you can set shorthand CSS properties, but retrieving them individually may not work as expected.

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