This is an example of a Signup Form with a blue background, designed using CSS, Html, and Bootstrap framework 4. The font, CSS, and Bootstrap styles are imported to the code with the URL. The form consists of input text fields, a checkbox, and a "Signup' button. The body of the form is given the styles of font color as #fff, background color as #3598dc, and font-family as 'Roboto', sans-serif. The Signup container is given a background color of #fff, and a box-shadow style of 0px 2px 2px rgba(0, 0, 0, 0.3). The input text fields are given a height of 41px and a background color of #f2f2f2. The input fields change their background color to #e2e2e2, in a focus event. The user name and password fields are validated by making them required fields. The 'Signup' button is created as a primary type button and given the styles of font-size as 16px, font-weight as bold, and background color as #3598dc. The button changes its color to #2389cd, in hover, and focus events. The 'Terms' and 'Privacy Policy' links also take an underline effect in a hover event. Source: https://www.tutorialrepublic.com/codelab.php?topic=bootstrap&file=simple-sign-up-form-with-blue-background