Are there strange shifts when using jquery animation?

Question

JavaScript

When using jquery animation, strange shifts occur after the second block appears?
How to fix this problem?

$("#siteVizitka").bind("click", function() {
    $(".step1").hide(1000);
    $("#sV").show(1000);
    back = "#sV";
 });

Answer 1

Without the code at work, it's hard to say something here. Perhaps the blocks have different sizes.