You need to put the HTML elements (starts with
<h1 class="text-center white-text">Krewella</h1> in your code) into the HTML section of codepen.
Everything you put inside the
<style>...</style> should stay in the CSS section, but remove
I can see you put an effort to style the submit button. However, the text is not centered on the button. You can fix that by changing the button width.