hide block in js before showing code example
Example 1: javascript hide div
<script>
document.getElementById("id").style.display = "none";
document.getElementById("id").style.display = "block";
document.getElementById("id").style.display = "";
</script>
<html>
<div id="id" style="display:none">
<div id="id" style="display:block">
</html>
<script>
$("#id").hide();
$("#id").show();
</script>
Example 2: javascript hide a div
<div id="main">
<p> Hide/show this div </p>
</div>
('#main').hide();
$("#main").css("display", "none");