title: HTML/CSS Button when clicked changes into input field and submit button
body: <p>How would you go about making a clickable button that changes into an <code>&lt;input&gt;</code> field with a <code>&lt;submit&gt;</code> button on my website?  Once the button is clicked I want it to slide to the right and then the text input form will come in and be right beside it.  I don't know if I should use CSS or JavaScript. Any help?</p>