div on top of iframe | 易学教程

问题

Im looking for a solution to place a div (100% screen width and lets say 20% height) on top of iframe which is 100% screen width and 100% screen height It should look like this:

__________________________
||      On top DIV       ||
||_______________________||
|                         |
|         Iframe          |
|                         |
|_________________________|

回答1:

Super simple stuff..

put an iframe, and a header div inside one container div.

set position:relative on the container, and position:absolute and top:0 on the header div.

that should do it.

HTML:

<div class="holder">
   <iframe class="frame"></iframe>
   <div class="bar"></div>
</div>

CSS:

.holder{
    width: 400px;
    height:300px;
    position:relative;
}
.frame{
    width: 100%;
    height:100%;
}
.bar{
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:40px;
}

fiddle

回答2:

The concept of Rodik answer is good but the implementation is buggy.

put an iframe, and a header div inside one container div.
set position:relative on the container, and position:absolute and top:0 on the header div.

http://jsfiddle.net/eayr9pup/2/

.holder {
  width: 400px;
  height: 300px;
  position: relative
}

.frame {
  width: 100%;
  height: 100%;
  background-color: blue;
}

.bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background-color: red;
}

<div class="holder">
  <iframe class="frame"></iframe>
  <div class="bar"></div>
</div>

回答3:

It should be possible, what's the problem?

Make sure you have the position style set to absolute (or fixed, depending on your need) and set the proper z-index if necessary. Also adjust width and height as needed.

来源：https://stackoverflow.com/questions/13317626/div-on-top-of-iframe

标签

css

html

iframe