percentage in jquery css Positioning

Question

Why the JQuery syntax below is not correct:

 $('#Footer').css({ right: 6%, bottom: 0 });  

And this one is:

 $('#Footer').css('right', '6%');
 $('#Footer').css('bottom', '0');

What is incorrect in the first code ?

Thanks in advance

Answer 1

6% is not a number, so it must be specified as a string.

$('#Footer').css({ right: '6%', bottom: 0 });