<body> <p>HTML is <span id="del"></span> easy to learn.</p> <input type="button" id="b1" value="Press" onclick="del()"> </body>
function del()
{
var element=document.createElement("del");
var text=document.createTextNode("hard");
element.appendChild(text);
document.getElementById("del").appendChild(element);
}
del
{
font-size:30px;
font-family:comic sans ms;
color:green;
}