animate scrolling with CSS3

Question

Is there a way to animate scrolling with CSS3?

Something like this?

@-webkit-keyframes scrolltoview
{
    0%   { scrollTop: 0; }
    100% { scrollTop: 30%; }
}

How to put in the css where's the staring point of the animation?

Answer 1

As explained here you can do it using margin-top trick and updating scroll position dynamically. You can check the demo. Code is straight forward:

// Define the variables
var easing, e, pos;
$(function(){
  // Get the click event
  $("#go-top").on("click", function(){
    // Get the scroll pos
    pos= $(window).scrollTop();
    // Set the body top margin
    $("body").css({
      "margin-top": -pos+"px",
      "overflow-y": "scroll", // This property is posed for fix the blink of the window width change 
    });
    // Make the scroll handle on the position 0
    $(window).scrollTop(0);
    // Add the transition property to the body element
    $("body").css("transition", "all 1s ease");
    // Apply the scroll effects
    $("body").css("margin-top", "0");
    // Wait until the transition end
    $("body").on("webkitTransitionEnd transitionend msTransitionEnd oTransitionEnd", function(){
      // Remove the transition property
      $("body").css("transition", "none");
    });
  });
});

@AndrewP provided a nice working example based on this idea