question 2

by dine

HTML

<button class="btn">Button</button>

CSS

button {
    display: block;
    margin: 5px;
    border: 0;
    background: #007ec5;
    padding: 5px 15px;
    border-radius: 3px;
    color: #fff;
    font: 12px sans-serif;
    outline: none;
}

JavaScript

$(document).delegate('.btn', 'click', function(){
    $(this).clone().appendTo('body');
});