css3的学习笔记_html/css_WEB-ITnose
适合初学者以及没看过css3的人快速了解css3的主要内容。
1.opacity ----------------------取值0-1之间，给整个元素和其所有子元素设置透明度级别
2.css选择器---------------------- http://www.w3school.com.cn/cssref/css_selectors.asp
其中li:nth-child(2n+1)表示选择基数个(可以类推) input:not([type="submit"]) 可以做否定的选择 3.html5兼容浏览器老版本对标签不识别问题
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