Modifying multiple CSS properties in one go using jQuery

jQuery .css() method can be used to set one or more CSS properties for every matched element.

Setting single CSS property

 
$('p').css( "background-color", "yellow" );

 

Setting multiple CSS propertes

 
$('div.header').css({"background-color": "yellow","font-weight": "bold" });

 

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jQuery API - .css() Method

www.w3schools.com >>jQuery - css() Method