CSS Transition doesn't work with top, bottom,

问题:

I have an element with style

position: relative;
transition: all 2s ease 0s;

Then I want to change its position smoothly after clicking on it, but when I add the style change the transition doesn't take place, instead the element moves instantly.

$$('.omre')[0].on('click',function(){
    $$(this).style({top:'200px'});
});

However if I change the color property for example, it changes smoothly.

$$('.omre')[0].on('click',function(){
    $$(this).style({color:'red'});
});

What might be the cause of this? Are there properties that aren't 'transitional'?

EDIT: I guess I should have mentioned that this is not jQuery, it's another library. The code appears to work as intended, styles are being added, but transition only works in second case?

回答1:

Try setting a default value in the css (to let it know where you want it to start out)

CSS

position: relative;
transition: all 2s ease 0s;
top: 0; /* start out at position 0 */

回答2:

Perhaps you need to specify a top value in your css rule set, so that it will know what value to animate from.