Generally, we want to separate our CSS code from the HTML code to make things more organized and reusable. Here are some examples of inline CSS added directly to HTML tags: ...

Just as you would inject an attribute into HTML or CSS code, you can also inject data into JavaScript code. For example, to pass a variable from PHP to JavaScript, inject the value in the ...

By appending just a few lines of HTML and CSS code, researcher Louis Dion-Marcil showed how an external sender could hide the very warning from an email message.

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 ...