I have a CSS that makes fading out effect. #mainframe.normal { opacity: 1.0; }

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Asked: May 28, 20262026-05-28T07:42:37+00:00 2026-05-28T07:42:37+00:00

I have a CSS that makes fading out effect. #mainframe.normal { opacity: 1.0; }

0

I have a CSS that makes fading out effect.

#mainframe.normal
{
    opacity: 1.0;
}
#mainframe.faded
{
    opacity: 0.0;
}
#mainframe
{
  /* Firefox */
  -moz-transition-property: opacity;
  -moz-transition-duration: 3s;
  /* WebKit */
  -webkit-transition-property: opacity;
  -webkit-transition-duration: 3s;
  /* Standard */
  transition-property: opacity;
  transition-duration: 3s;
}

It is controlled by the following script:

document.getElementById('mainframe').className = "faded";

Unfortunately, there is no parameter in CSS, that sets what step should be used, only total time of the whole animation and Bezier function (slow, fast…). I was looking for it in jQuery, but jQuery seems to have no such parameter as well.

Is there a way to set a single frame timeout (or, that is the same, how many frames should be used)?

I need it to try to improve smoothness on iPhone (I presume that lesser steps == higher performance).

Regards,