<div class="toggleButton" id="html">HTML</div>
<div class="toggleButton" id="css">CSS</div>
<div class="toggleButton" id="javascript">JavaScript</div>
<div class="toggleButton" id="output">Output</div>

.active{
                background-color: #E8F2FF;

            }
 $(".toggleButton").click(function() {

            $(this).addClass("active");
            $(this).css("backgroundcolor" , "#E8F2FF");
});