如何将 div 内的联系表单居中。我试过margin:0 auto;
了,但没有用。
<div id="new_div_3">
<form class="contact_form" action="#" method="post" name="contact_form">
<ul>
<li>
<h2>Contact Us</h2>
<span class="required_notification">* Denotes Required Field</span>
</li>
<li>
<label for="name">Name:</label>
<input type="text" placeholder="John Doe" required />
</li>
<li>
<label for="email">Email:</label>
<input type="email" name="email" placeholder="john_doe@example.com" required />
<span class="form_hint">Proper format "name@something.com"</span>
</li>
<li>
<label for="website">Website:</label>
<input type="url" name="website" placeholder="http://johndoe.com" required pattern="(http|https)://.+"/>
<span class="form_hint">Proper format "http://someaddress.com"</span>
</li>
<li>
<label for="message">Message:</label>
<textarea name="message" cols="40" rows="6" required ></textarea>
</li>
<li>
<button class="submit" type="submit">Submit Form</button>
</li>
</ul>
</form>
</div>
我尝试过使用各种方法,但似乎没有一种方法可以使 div 居中。我什至尝试将联系表单本身居中,它只是将输入字段移动到联系表单的中心,而不是 div。