add css by jquery code example
Example 1: jquery add style
//revising Ankur's answer
//Syntax:
$(selector).css({property-name:property-value});
//Example:
$('.bodytext').css({'color':'red'});
Example 2: jquery css
$('#element').css('display', 'block');
$('#element').css({'display': 'block', 'background-color' : '#2ECC40'});
Example 3: set css using jquery
$('.name').css('color':'blue');
Example 4: add css file through jquery
$('head').append('<link rel="stylesheet" href="style2.css" type="text/css" />');