Simply, the specification forcustom data attributesstates that any attribute that starts with "data-" will be treated as a storage area for private data (private in the sense that the end user can't see it - it doesn't affect layout or presentation).This allows you to writevalidHTM
Angular overrides quite a few existing HTML elements and attributes. This can be a useful technique in our own applications. We will build a directive...
1、没有内容的HTML元素被称为空元素。空元素是在开始标签中关闭的。<br/>，是关闭空元素的正确方法。2、HTML标签对大小写不敏感，但推荐小写。3、属性值应该始终被包括在括号内。4、注释：开始括号之后（左边的括号）需要紧跟一个叹号，结束括号之前（右边的括号）不需要。 <!-- This is a comment --> 5、使用空的段落标记 <p></
