jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code right inside your browser. A quick tour ...

But either way, the element still exists in the HTML; the CSS just affects how they display in the browser. For a form, the input tags still exist and will still send their value="" attributes to ...

Use CSS code to style your site headers with borders and other design elements. HTML and CSS use a box model, which means that page elements include margins, padding, background colors and ...