#display2 {
position:absolute;
top:5px;
left:400px;
height:30px;
width:200px;
clip:rect(0px,0px,0px,0px);
border:1px dashed red;
text-align:center;
padding:5px;
background:#ffff00;
font-weight:bold;}
<script>
function addError() {
var elem1 = document.getElementById("add1");
document.getElementById('add1').setAttribute("role", "alert");
document.getElementById('display2').style.clip='auto';
alertText = document.createTextNode("alert via createTextnode()");
elem1.appendChild(alertText);
elem1.style.display='none';
elem1.style.display='inline';
}
</script>
<div id="display2" role="alert"><span id="add1"></span></div>
<input type="submit" value="Method 4 alert - display" onClick="addError()">