《HTML5与CSS3基础教程》学习笔记 Two Day - 逆光飞翔23-HTML Tutorial-php.cn

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《HTML5与CSS3基础教程》学习笔记 Two Day - 逆光飞翔23

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May 21, 2016 am 08:35 AM

第七章

1、样式表：选择器和生命块

2、 !important：某条声明的重要程度比其他高，在末尾添加

3、属性值：inherit; 是强制继承

4、 1em=16px;

5、可以接受不带单位的属性：line-height、z-index、opacity

6、 background-color/color/border/box-shadow/text-shadow: rgba(89,0,127,.2);最后一个是透明度

7、属性：hsl(95,10%,28%) 色相、饱和度、亮度

第八章

1、在和

第九章

1、下一级子元素：> 相邻同胞元素：+

2、选择元素的第一个字母或者第一行：firsr-letter、：first-line【在css3中，使用::代替：】

第十章

1、 font-weight：bold/（输入100-900之间100的倍数，400代表正常粗细，700粗体）/normal

2、 background-attachment：背景图片是否随滚动条滚动

3、 text-aligh：justify让文本两端对齐

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