How to modify a CSS tag value dynamically using javascript

Question

Perspective based rotation : I have a div which i want to rotate in CSS3 using webkit. The div is rotated after a usermouse down event in jquery

I use keyframes to do that

@-webkit-keyframes rotate {

enter code here

0% {
    -webkit-transform: rotate(0deg);

}100% {
    -webkit-transform: rotate(90deg);

}

}

@-webkit-keyframes rotate2 {

0% {
    -webkit-transform: rotate(90deg);
    -webkit-transform: rotateX(45deg);  
}100% {
    -webkit-transform: rotate(180deg);
    -webkit-transform: rotateX(45deg);  
}

}

@-webkit-keyframes rotate3 {

0% {
    -webkit-transform: rotate(180deg);
}100% {
    -webkit-transform: rotate(270deg);
}

}

@-webkit-keyframes rotate4 {

0% {
    -webkit-transform: rotate(270deg);
}100% {
    -webkit-transform: rotate(360deg);
}

}

My question is I have also applied webkit perspective to give a 3d kind of view and I have to rotate the div keeping the perspective X angle to 45deg...how is it possible ?

body {
   -webkit-transform-style: preserve-3d;
   -webkit-perspective: 500;
   -webkit-perspective-origin: 45%;
}


#mydiv {
  height: 300px;
  width: 100px;
  border: 2px solid #D3DAED;
  position:absolute;
  top:29%; 
  left:45%;
  **-webkit-transform: rotateX(45deg);**
}

Answer 1

I don't really understand exactly what you are trying to do, but in jquery you can alter css dynamically like this:

$('#mydiv').css('-webkit-transform', 'rotateX(45deg)');