html - 在 2 列中拆分文本不起作用

Question

我希望我的文本像在报纸上一样被分成两栏，但由于某种原因它不起作用。你知道为什么吗？谢谢 http://jsfiddle.net/Grek/4cYb2/

<div class="article 2columns">
  <h2>Biography</h2>
  <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
    <p>Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?</p>
  <p><strong>LOREM IPSUM</strong></p>
</div>

CSS:

.2columns
{
-moz-column-count:2; /* Firefox */
-webkit-column-count:2; /* Safari and Chrome */
column-count:2;
}
.article {
    float: right;
    width: 400px;
    padding: 60px 82px 49px 82px;
    position: relative;
    z-index: 15;
    margin-top: 90px;
    background: #fff;/* max-width: 23.5%; */
}

Answer 1

您不能在 CSS 中以数字(Which characters are valid in CSS class names/selectors?)开始一个类，改为使用 .columns 它将起作用:

http://jsfiddle.net/Adrift/4cYb2/3/

来自2.1 Spec :

In CSS, identifiers (including element names, classes, and IDs in selectors) can contain only the characters [a-z0-9] and ISO 10646 characters U+00A1 and higher, plus the hyphen (-) and the underscore (_); they cannot start with a digit, or a hyphen followed by a digit. Identifiers can also contain escaped characters and any ISO 10646 character as a numeric code (see next item). For instance, the identifier "B&W?" may be written as "B\&W\?" or "B\26 W\3F.