//Hide
$("#id" ).css('display','none');
//Display
$("#id").css('display','block');
or
$("#id")[0].style.display = 'none';
$("#id") returns JQuery
It is a collection and must have a display attribute
$("#id").show() means display:block, $("#id").hide() means display:none; $("#id").toggle() switches the visible state of the element. If the element is visible, switch it to hidden; if the element is hidden, switch it to visible.
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