<buttonid="btn4"class="btn btn-info"style="width:150px">Save Data<spanclass="tooltiptext4">Click me to save your data to local storage!</span></button>
<buttonid="btn5"class="btn btn-info"style="width:150px">Retrieve Data<spanclass="tooltiptext5">Click me to retrieve your data from local storage!</span></button>
<buttonid="btn6"class="btn btn-info"style="width:150px">Delete Data<spanclass="tooltiptext6">Click me to delete your data to local storage!</span></button>