80 lines
1.8 KiB
Markdown
80 lines
1.8 KiB
Markdown
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---
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id: 60f81167d0d4910809f88945
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title: 步驟 17
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challengeType: 0
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dashedName: step-17
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---
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# --description--
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距離父級 `form` 元素最近的第一個 `type` 爲 `submit` 的 `input` 元素會被當作提交按鈕。
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爲了處理表單提交，在最後 `fieldset` 元素後添加一個 `input` 元素，其 `type` 屬性設置爲 `submit`，`value` 屬性設置爲 `Submit`。
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# --hints--
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應該將 `input` 元素添加到最後一個 `fieldset` 元素後。
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```js
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assert.exists(document.querySelectorAll('fieldset')?.[2]?.nextElementSibling?.tagName, 'input');
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```
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`input` 的 `type` 屬性值應該爲 `submit`。
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```js
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assert.exists(document.querySelector('fieldset + input[type="submit"]'));
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```
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`input` 元素的 `value` 屬性值應該爲 `Submit`。
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```js
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assert.exists(document.querySelector('fieldset + input[value="Submit"]'));
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```
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# --seed--
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## --seed-contents--
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Registration Form</title>
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<link rel="stylesheet" href="styles.css" />
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</head>
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<body>
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<h1>Registration Form</h1>
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<p>Please fill out this form with the required information</p>
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<form action='https://register-demo.freecodecamp.org'>
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--fcc-editable-region--
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<fieldset>
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<label>Enter Your First Name: <input type="text" /></label>
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<label>Enter Your Last Name: <input type="text" /></label>
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<label>Enter Your Email: <input type="email" /></label>
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<label>Create a New Password: <input type="password" /></label>
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</fieldset>
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<fieldset></fieldset>
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<fieldset></fieldset>
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--fcc-editable-region--
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</form>
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</body>
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</html>
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```
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```css
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body {
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width: 100%;
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height: 100vh;
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margin: 0;
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background-color: #1b1b32;
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color: #f5f6f7;
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}
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label {
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display: block;
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margin: 0.5rem 0;
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}
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```
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