What are the uses of iFrame tags in HTML?

This time I will show you how to use the iFrame tag in HTML, and what are the precautions for using the iFrame tag in HTML. The following is a practical case, let's take a look.

There is a project I am currently working on - Budou Favorites. In short, it is to collect your favorite

pictures to the Butou page, which uses a lot of aspects about iframe. The summary is as follows: 1. As a pop-up layer to cover

If you have done that kind of black mask that covers the entire page, and it happens that the user is using IE6, and it happens that there is a select element on the page, you will have a headache (the principle will not be repeated here). We will find that the pop-up DIV cannot cover the selection, and it is our iframe's turn to appear. The logic is as follows:

Put it into the iframe at the same level as the pop-up p

Ensure that the
z-index of the iframe is smaller than the elastic layer p z-index Add window resize and scroll
Event , ensure that the iframe can cover the entire page

Part of the code

var iframe = U.isie6() ? &#39;<iframe style="position:absolute;left:0;top:0;z-index:2000000;filter:Alpha(opacity=0); width:100%;height:&#39; + ds.height + &#39;" frameborder="0"></iframe>&#39; : &#39;&#39;;   
$container.append(iframe).appendTo($body);

2. Cross-domain writing cookie

There are two a.com and b.com domain. Under certain conditions, some functions of b will appear on page a. Sometimes it is necessary to perform some operations on the cookie of b.com domain when operating page a to facilitate the user's next visit. We only need to add an iframe (dynamic or fixed) to page a. The src

attribute points to a proxy page of b, and perform cookie operations on this page.

I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

What are the standards for HTML code writing

HTML optimization techniques you must know

What are the commonly used tags in XHTML

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