adding css style using 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'); /* Single style */
$('#element').css({'display': 'block', 'background-color' : '#2ECC40'}); /* Multiple style */