HTML – 如何防止缩小内容的大小?

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我在容器中有两个元素:

风格如下:

span,button {
    display: block;
    padding: 4px;
    border: 1px solid black;
    margin: 5px;
    background: #c0c0c0;
    font: inherit;
}

.container {
    border: 1px solid black;
}

你可以看到现场演示here.

为什么按钮的宽度与跨度不同?如何使按钮的行为类似于标准块级元素?

我需要使用< button>这里是因为它的目的是提交表格.

最佳答案

I’m expecting there to be some ruleset that makes them both
behave like s

没有.原因是按钮是“replaced element”.

我能找到的最清楚的来源是:http://reference.sitepoint.com/css/replacedelements

A replaced element is any element whose appearance and dimensions are
defined by an external resource. Examples include images ( tags),
plugins ( tags),and form elements (,,
,and tags). All other elements types can be referred
to as non-replaced elements.

Replaced elements can also have visual formatting requirements imposed
by the element,outside of the control of CSS; for example,the user
interface controls rendered for form elements.

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