There are several ways to accomplish this, each with its own intended purpose.
1.) To use inline while simply assigning an element a list of things to do
$('#ele_id').css('display', 'block').animate(....
$('#ele_id').css('display', 'none').animate(....
2.) To use while setting multiple CSS properties
$('#ele_id').css({
display: 'none'
height: 100px,
width: 100px
});
$('#ele_id').css({
display: 'block'
height: 100px,
width: 100px
});
3.) To dynamically call on command
$('#ele_id').show();
$('#ele_id').hide();
4.) To dynamically toggle between block and none, if it's a div
$('#ele_id').toggle();