css - 你能阻止:first-line styles from applying to :after elements in Opera and Chrome?吗

Question

在 Chrome 和 Opera 中，似乎 :first-line 规则也适用于 :after 伪元素，并且不能被 !important 或正常的 CSS 权重覆盖。

例如，我有一系列关于 H2 元素的规则，如下所示 ( jsfiddle here )

CSS

h2.dotted {
    position: relative;
    font-size: 20px;
}
h2.dotted.first:first-line {
    font-size: 30px;
}
h2.dotted:after {
    content: "............................................";
    font-size: 10px !important;
    position: absolute;
    bottom:-1em;
    left: 0;    
    width: 100%;
}

HTML

<h2 class="dotted first">This header has a first-line pseudo-element<br /> 
And its :first-line rules override its :after rules.</h2>
<h2 class="dotted">This header has no first-line pseudo-element<br /> 
And its dots are at the correct size.</h2>

我所期望的(以及在 IE、FF 和 Safari 中发生的情况)是 :after 伪元素的字体大小为 10px。相反，它的字体大小为 30px。有没有办法纠正这种行为？

Answer 1

我想出了一个办法:

h2.dotted:before {
    content: "\A............................................";
    font-size: 10px !important;
    position: absolute;
    bottom:-1em;
    left: 0;    
    width: 100%;
    white-space: pre;
}

“\A”是新行的转义字符。并使用 white-space: pre 强制将点放在第二行。

fiddle