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HomeWeb Front-endHTML Tutorial[Reading Notes] Head first HTML with CSS Second Edition_html/css_WEB-ITnose

附录: HTML Cheat Sheet

  • 一下午读了300页,这本书真的是大白话,目标读者应该是那些完全没有编程经验的人群入门。
  • Tips:

    IE无法正确显示页面主体周围的边框 body{border:}

    index.html#id    用id链接到页面元素

    像素:你的计算机显示屏是由树百万个称为像素的点组成的


    换行,void类型的元素 XHTML中更严格的语法要求

    Block and inline:
  • 短引用,内联元素,作为现有段落的一部分。哪些浏览器会自动加双引号?
  • 长引用,块元素,单独显示。浏览器会稍稍缩进?
      1. 块元素
      2. 行内元素
      3. 根据具体的上下文,既可以是内联元素也可以是块元素,因为它可以包含块元素,而不仅仅是文本
      4.  


      5. 是块元素和内联元素之间的模糊地段,它的确会创建一个换行,但不会像

        那样把一个文本分成单独的两块

      6. [Reading Notes] Head first HTML with CSS Second Edition_html/css_WEB-ITnose是内联元素,它不会在前面或者后面插入换行,  alt属性指定描述这个图像的一些文本 。浏览器是在下载了html文件并开始显示页面之后才开始下载图像,如果为img提供了width和height属性,浏览器在显示图片之前就可以开始建立页面布局,如果没有指定,则浏览器在下载图像之后才能知道大小,需要重新调整页面布局
      7. 为什么不能直接使用width和height来调整图片的大小?因为浏览器在缩放图像使之适应页面大小之前,仍然需要获取整个大图像。width和height属性实际上是帮助浏览器确定要为这个图像预留多大的空间,如果要使用这两个属性,则它们应当与图像的实际宽度和高度一致

        表格:
        1. ordered list
        • unordered list
      8. list item
      9. 定义列表

      10.    
        定义术语
      11.    
        定义描述
      12. HTML 实体:

        在 HTML 中,某些字符是预留的。

        在 HTML 中不能使用小于号(),这是因为浏览器会误认为它们是标签。

        如果希望正确地显示预留字符,我们必须在 HTML 源代码中使用字符实体(character entities)。

        参考链接:HTML ISO-8859-1 参考手册

        字符实体类似这样:

      13. < <
      14. > & ©right;
      15. 注释:实体名称对大小写敏感!实体数字被浏览器支持的更好

        HTML不会再有6,7,8

        HTML不会再有版本6、7、8….制定标准的人已经把这个规范变成了一个活的标准,它会随着技术的发展形成相应文档。所以,不再有版本号,你甚至可以不把它叫做HTML5,因为从现在开始,它只是“HTML”

        向后兼容性(backwords compatibility)表示我们可以继续向HTML增加新的内容,浏览器最终会支持这个新内容,不过它们还是会继续支持原来的内容

      16. meta表示我们要告诉浏览器关于页面的一些信息,在meta的charset属性中指定字符编码,字符编码为我们提供了一种方法,可以在计算机上表示某种语言中的所有字母数字和其他符号。如今标准已经统一为Unicode编码。utf-8是unicode序列中的一个编码,web页面中使用的就是utf-8

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