Table of Contents
2.1 使用:not()给导航条添加间隔线
2.2 给body元素增加Line-Height属性
2.3 任意元素垂直居中
2.4 逗号分隔的列表
2.5 在nth-child中使用负数
2.6 使用svg图标
2.7 文本显示优化
2.8 在Pure CSS Sliders中使用max-height
2.9 初始化box-sizing
2.10 表格单元格等宽
2.11 使用Flexbox摆脱各种Margin Hacks
2.12 给空连接使用属性选择符
Home Web Front-end HTML Tutorial 提高您CSS开发能力的技巧集_html/css_WEB-ITnose

提高您CSS开发能力的技巧集_html/css_WEB-ITnose

Jun 24, 2016 am 11:35 AM

0. 目录

  • 目录
  • 引言
  • 正文
  • 1 使用not给导航条添加间隔线
  • 2 给body元素增加Line-Height属性
  • 3 任意元素垂直居中
  • 4 逗号分隔的列表
  • 5 在nth-child中使用负数
  • 6 使用svg图标
  • 7 文本显示优化
  • 8 在Pure CSS Sliders中使用max-height
  • 9 初始化box-sizing
  • 10 表格单元格等宽
  • 11 使用Flexbox摆脱各种Margin Hacks
  • 12 给空连接使用属性选择符
  • 声明
  • 1. 引言

    原文:github的A collection of useful CSS protips
    译者:爱前端乐分享的FedFun,意译为主不当之处,欢迎指正!
    译言:提高您CSS开发能力的技巧集,希望对大家有所帮助。

    2. 正文

    2.1 使用:not()给导航条添加间隔线

    我们通常使用如下代码给导航条增加间隔线

    /* add border */.nav li { border-right: 1px solid #666;}/* remove border */.nav li:last-child { border-right: none;}
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    现在,我们可以使用:not()选择符简化操作,代码简洁易读,不错吧。

    .nav li:not(:last-child) { border-right: 1px solid #666;}
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    或者,我们增加左边框。

    .nav li:first-child ~ li { border-left: 1px solid #666;}
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    2.2 给body元素增加Line-Height属性

    我们不需要给每个p、h1元素设置line-height,只需要给body元素设置,其他文本元素会自动继承body的特性。

    body { line-height: 1;}
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    2.3 任意元素垂直居中

    不是黑魔法,确实可以让任意元素垂直居中。

    html, body { height: 100%; margin: 0;}body { -webkit-align-items: center;  -ms-flex-align: center;  align-items: center; display: -webkit-flex; display: flex;}
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    2.4 逗号分隔的列表

    让html列表貌似现实中逗号分隔的列表

    ul > li:not(:last-child)::after { content: ",";}
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    2.5 在nth-child中使用负数

    在css的nth-child中使用负数选择1~n条记录。

    li { display: none;}/* select items 1 through 3 and display them */li:nth-child(-n+3) { display: block;}
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    2.6 使用svg图标

    没有理由不使用svg图标,在大多数分辨率和浏览器里能够实现缩放,甚至兼容到IE9,所以不用再用.png、.gif等等。

    .logo { background: url("logo.svg");}
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    2.7 文本显示优化

    一些字体不能再所有设备中最优展示,所以需要设置。

    html { -moz-osx-font-smoothing: grayscale; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;}
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    注意optimizeLegibility属性值的使用问题,同时IE/Edge不支持text-rendering。

    2.8 在Pure CSS Sliders中使用max-height

    使用max-height实现隐藏、显示的动画。

    .slider ul { max-height: 0; overlow: hidden;}.slider:hover ul { max-height: 1000px; transition: .3s ease;}
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    参见本博《Auto值的CSS3 Transition解决方案》

    2.9 初始化box-sizing

    从html中继承box-sizing属性,这样的话,后期维护比较方便。

    html { box-sizing: border-box;}*, *:before, *:after { box-sizing: inherit;}
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    2.10 表格单元格等宽

    .calendar { table-layout: fixed;}
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    2.11 使用Flexbox摆脱各种Margin Hacks

    在实现侧栏时,我们不再需要各种nth-、first-和last-child等设置margin,可以使用Flexbox轻松实现均匀分布。

    .list { display: flex; justify-content: space-between;}.list .person { flex-basis: 23%;}
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    2.12 给空连接使用属性选择符

    对于那些拥有href属性但是内容为空的a,自动添加内容。

    a[href^="http"]:empty::before { content: attr(href);}
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    非常方便,是吧。

    3. 声明
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