hiding a div in css code example

Example 1: css hiddden

.classname {
    visibility: hidden;
}

Example 2: hide in css

display:none;

Example 3: hide a div

<div id="main"> 
  <p> Hide/show this div </p>
</div>

('#main').hide(); //to hide

// 2nd way, by injecting css using jquery
$("#main").css("display", "none");