jQuery点击css3轮换

Question

I need to get an image to rotate having its transform origin at 50% 50%. is the following correct? It does not seem to work for me.

        function slideUp_Menu(){
                    $('.main_nav').slideUp('slow', function(){
                        $("#arrow_up").css({ "-webkit-transform": "rotate(180deg)" });
                        $("#arrow_up").css( "-webkit-transform-origin", "50% 50%");
                    });// $('.tab_wrapper').animate({ marginTop: '193px' }, 500, 'linear');
        }

Answer 1

I would add the transitions to your class in css eg:

transition: transform 1s ease;

then create another class and in there set the transform eg:

transform: rotate(10deg);

Then I would use jquery to add/remove the class eg:

$(document).on('click', 'selector', function() {
 $(this).addClass('class with transform');
});

Remember to include all the browser prefixes in your css selectors.

Js fiddle: http://jsfiddle.net/FhXj6/

Answer 2

no man its not correct and its for webkit supporting browsers!

    function slideUp_Menu(){
                $('.main_nav').slideUp('slow', function(){
                    $("#arrow_up").css({ "-moz-transform": "rotate(180deg)" });
                    $("#arrow_up").css( "-moz-transform-origin", "50% 50%");
                    $("#arrow_up").css({ "-webkit-transform": "rotate(180deg)" });
                    $("#arrow_up").css( "-webkit-transform-origin", "50% 50%");
                    $("#arrow_up").css({ "transform": "rotate(180deg)" });
                    $("#arrow_up").css( "transform-origin", "50% 50%");
                });// $('.tab_wrapper').animate({ marginTop: '193px' }, 500, 'linear');
    }

Answer 3

You could probably do it with jQuery but I'd recommend using Greensock for animations:

https://www.greensock.com/gsap-js/ 

the performance is far better and stuff like rotating is a breeze. Use .get(0) at the end of your selector and jQuery is a fine partner :)

TweenMax.to($("#arrow_up").get(0), {css:{rotation:180}});

If you want transform origin look here:

https://www.greensock.com/get-started-js/
"transformOrigin – Sets the origin around which all transforms occur. By default, it is in the center of the element ("50% 50%")."