修改form的显示的最快捷的方式是使用CSS。 尤其是错误列表，可以增强视觉效果。自动生成的错误列表精确的使用``
- ``，这样，我们就可以针对它们使用CSS。 下面的CSS让错误更加醒目了：
<style type="text/css">
ul.errorlist {
margin: 0;
padding: 0;
}
.errorlist li {
background-color: red;
color: white;
display: block;
font-size: 10px;
margin: 0 0 3px;
padding: 4px 5px;
}
</style>
虽然，自动生成HTML是很方便的，但是在某些时候，你会想覆盖默认的显示。 {{form.as_table}}和其它的方法在开发的时候是一个快捷的方式，form的显示方式也可以在form中被方便地重写。
每一个字段部件(,
<html>
<head>
<title>Contact us</title>
</head>
<body>
<h1 id="Contact-us">Contact us</h1>
{% if form.errors %}
<p style="color: red;">
Please correct the error{{ form.errors|pluralize }} below.
</p>
{% endif %}
<form action="" method="post">
<div class="field">
{{ form.subject.errors }}
<label for="id_subject">Subject:</label>
{{ form.subject }}
</div>
<div class="field">
{{ form.email.errors }}
<label for="id_email">Your e-mail address:</label>
{{ form.email }}
</div>
<div class="field">
{{ form.message.errors }}
<label for="id_message">Message:</label>
{{ form.message }}
</div>
<input type="submit" value="Submit">
</form>
</body>
</html>
{{ form.message.errors }} 会在
- 里面显示，如果字段是合法的，或者form没有被绑定，就显示一个空字符串。 我们还可以把 form.message.errors 当作一个布尔值或者当它是list在上面做迭代， 例如：
<div class="field{% if form.message.errors %} errors{% endif %}">
{% if form.message.errors %}
<ul>
{% for error in form.message.errors %}
<li><strong>{{ error }}</strong></li>
{% endfor %}
</ul>
{% endif %}
<label for="id_message">Message:</label>
{{ form.message }}
</div>
在校验失败的情况下, 这段代码会在包含错误字段的div的class属性中增加一个”errors”，在一个有序列表中显示错误信息。
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