add css class using jquery code example

Example 1: jquery addclass

$("#elem").addClass("classname");

Example 2: addclass jquery

$( "p" ).addClass( "myClass yourClass" );

Example 3: add class jquery

$("#my_id").attr("class", "my_new_class_name");

Example 4: jquery addclass

$( "p" ).removeClass( "myClass noClass" ).addClass( "yourClass" );

Example 5: jquery add css class

$("div").addClass("important");

addClass() - Adds one or more classes to the selected elements
removeClass() - Removes one or more classes from the selected elements
toggleClass() - Toggles between adding/removing classes from the selected elements
css() - Sets or returns the style attribute