How Can jQuery Dynamically Generate and Apply CSS Rules Without a Static CSS File?

Dynamic CSS Rule Generation using jQuery

Problem:

CSS files often require static definitions of CSS rules. How can we create reusable CSS rules dynamically at runtime without the use of a static CSS file?

Solution:

Using jQuery, we can append a

$("<style type="text/css"> .redbold{ color:#f00; font-weight:bold;} </style>").appendTo("head");

Example:

To create the static CSS rule #my-window, we would add the following to the head element of the HTML document:

$("<style type="text/css"> #my-window { position:fixed; z-index:102; display:none; top:50%; left:50%; } </style>").appendTo("head");

Usage:

After defining the CSS rule in this manner, it can be applied to DOM elements using the addClass() method:

$("element-to-style").addClass("my-window");

This method allows for easy creation and application of reusable CSS rules without the need for a separate CSS file.

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