HTML 5 <iframe> 标签
定义和用法
<iframe> 标签创建包含另一个文档的行内框架。
HTML 4.01 与 HTML 5 之间的差异
在 HTML 5 中，仅仅支持 src 属性
标准属性
class, contenteditable, contextmenu, dir, draggable, id, irrelevant, lang, ref, registrationmark, tabindex, template, title
事件属性
onabort, onbeforeunload, onblur, onchange, onclick, oncontextmenu, ondblclick, ondrag, ondragend, ondragenter, ondragleave, ondragover, ondragstart, ondrop, onerror, onfocus, onkeydown, onkeypress, onkeyup, onload, onmessage, onmousedown, onmousemove, onmouseover, onmouseout, onmouseup, onmousewheel, onresize, onscroll, onselect, onsubmit, onunload