--- id: 60ffe7d8aae62c05bcc9e7eb title: Step 51 challengeType: 0 dashedName: step-51 --- # --description-- With a `display` of `block` the submit button sits flush against the left edge of its parent. Use the same technique used to center the `form` to center the submit button. # --hints-- You should give the submit button a `margin` of `0 auto`. ```js assert.equal(new __helpers.CSSHelp(document).getStyle('input[type="submit"]')?.margin, '0px auto'); ``` You should not give the submit button a `min-width` or `max-width`. ```js assert.isEmpty(new __helpers.CSSHelp(document).getStyle('input[type="submit"]')?.minWidth); assert.isEmpty(new __helpers.CSSHelp(document).getStyle('input[type="submit"]')?.maxWidth); ``` # --seed-- ## --seed-contents-- ```html Registration Form

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``` ```css body { width: 100%; height: 100vh; margin: 0; background-color: #1b1b32; color: #f5f6f7; font-family: Tahoma; font-size: 16px; } h1, p { margin: 1em auto; text-align: center; } form { width: 60vw; max-width: 500px; min-width: 300px; margin: 0 auto; } fieldset { border: none; padding: 2rem 0; } fieldset:not(:last-of-type) { border-bottom: 3px solid #3b3b4f; } label { display: block; margin: 0.5rem 0; } input, textarea, select { margin: 10px 0 0 0; width: 100%; min-height: 2em; } input, textarea { background-color: #0a0a23; border: 1px solid #0a0a23; color: #ffffff; } .inline { width: unset; margin: 0 0.5em 0 0; vertical-align: middle; } --fcc-editable-region-- input[type="submit"] { display: block; width: 60%; } --fcc-editable-region-- ```