埃里克·梅耶(Eric Meyer)的reset.css中“字体”和“内容”被覆盖的原因是什么?

时间:2018-09-23 23:58:13

标签: css cross-browser

Original CSS rules,由Eric Meyer撰写:

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

这里有两个覆盖:

  1. font: inherit;覆盖font-size: 100%;
  2. content: none覆盖content: ''

在具有代码质量控制工具的现代IDE中,以下警告会令人讨厌:

这种覆盖的原因是什么?

我想我们可能会更正以下内容:

  • 当前Internet Explorer 7在任何地方均不受支持。因此,font: inherit;如果没有font-size: 100%就足够了;
  • ''content受支持的任何地方都支持:after属性的
  • :before。因此,我们不需要content: none

0 个答案:

没有答案