CSS3 equivalent to jQuery slideUp and slideDown?

Question

My application is performing poorly with jQuery\'s slideDown and slideUp. I\'m looking to use a CSS3 equivalent in browsers which support it.

Is it possible, using C

Answer 1

    try this for slide up slide down with animation 
give your **height

        @keyframes slide_up{
            from{
                min-height: 0;
                height: 0px;
                opacity: 0;
            }
            to{
                height: 560px;
                opacity: 1;
            }
        }

        @keyframes slide_down{
            from{
                height: 560px;
                opacity: 1;
            }
            to{
                min-height: 0;
                height: 0px;
                opacity: 0;
            } 
        }