iframe parent-child page operation-two easy-to-use methods-window.parent/oframe.contentWindow.document_html/css_WEB-ITnose

I found a more useful method of operating iframe parent-child pages, record it

1. Parent page test.html

Get iframe var oframe = document. getElementById("main")

Get the subpage var child = oframe.contentWindow.document

Get the subpage Element var test = child.getElementById("test")

Get the child page height var childh = child .body.offsetHeight

Get the sub-page height

2. Sub-page iframe.html

Get the parent page var parent = window.parent.document

Note: The code needs to be placed on the server side to be compatible with Google Chrome