This is an example of a Signup form with rounded social media buttons, designed using CSS, Html, and Bootstrap framework 4. The form consists of the signup card, social media buttons, input text fields, 'Signup' button, and a 'Login' link. The font, CSS, and Bootstrap styles are imported to the code with their URLs. The body of the form is given the styles of background color as #dfe7e9, and font-family as 'Roboto', sans-serif. The signup container is given a width of 480px, background color of #fff, and a box-shadow style of 0px 2px 2px rgba(0, 0, 0, 0.3) The input text is displayed with a font-size of 16px, whereas the input fields take a border color of #5cb85c, in a focus event. The input text fields are validated by making them required fields. The header of the signup form is displayed with a font-size of 34px. The 'Signup' button is created as a success type button and given a background color as #5cb85c. The social media buttons are created as primary, info, and danger type buttons and given the background colors of #507cc0, #64ccf1, and #df4930. The buttons change their opacity value to 0.8, in a hover event. Source: https://www.tutorialrepublic.com/snippets/preview.php?topic=bootstrap&file=sign-up-form-with-rounded-social-buttons