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HomeWeb Front-endHTML TutorialDetailed explanation of iframe tag usage

Detailed explanation of iframe tag usage

Jun 27, 2017 am 10:01 AM
iframeLabelusageDetailed explanation

iframe is generally used to include other pages. For example, we can load the content of other people's websites on our own website pages. For better results, we may need to make the iframe transparent, so we need to know more iframe attributes. Here is a simple arrangement for the convenience of friends who need it

1. iframe definition and usage

The iframe element will create an inline frame that contains another document (i.e. inline frame ).

Differences between HTML and XHTML

In HTML 4.1 Strict DTD and XHTML 1.0 Strict DTD, the iframe element is not supported.

Tips and Notes:

Tip: You can place the required text between to cope with the problem Browsers that understand iframes.

iframe tags appear in pairs, starting with

The content in the iframe tag can be displayed when the browser does not support the iframe tag

Attributes

##frameborderheightTFlongdescTFmarginheightTFmarginwidthTFnameTFscrollingTFsrcTFwidth
Attributes Value Description DTD
align
  • left

  • right

  • top

  • middle

  • bottom

Dislike use. Please use styles instead.

Specifies how this frame is aligned relative to surrounding elements.

TF
    ##1
  • 0
Specifies whether to display the border around the frame.
TF
    ##pixels
  • %
  • Specifies the height of the iframe.
URL # Specifies a page that contains information about the iframe Longer description.
pixels Define the top of the iframe and bottom margin.
pixels Define the left and right margins of the iframe .
frame_name Specifies the name of the iframe.
yes
  • no
  • auto
  • Specifies whether to display scroll bars in the iframe.
URL Specifies the URL of the document displayed in the iframe.
##pixels
  • %
  • Define the width of the iframe.
TF


Example

The code is as follows:

Use pixels to define the iframe frame size

The code is as follows:

Use percentage to define iframe frame size
2. iframe transparent
In the

tag of the transparentBody.htm file, I Style="background-color=transparent" has been added. Through the following four ways of writing IFRAME, I think you should have a clear understanding of how to achieve the iframe background transparency effect:

The code is as follows:



iframe is used as a last resort , because using iframes will cause more problems, and some browsers can be set to block iframes as ads.
I used iframe in a recent work content, and the problem I encountered at first was that the iframe was highly adaptive. I found a solution to this problem in the ued team blog of Koubei.com, and later I encountered a problem with iframe transparency.
Usually the iframe background color will be white, but it may have different colors in different browsers
If the main page has an overall background color or background Pictures
iframe area A white block will appear, which is inconsistent with the main page, which requires iframe transparency
I found the solution by searching for iframe transparency on Google

The code is as follows:

');

5. Sometimes we need to consider whether the user's browser supports the iframe tag, then we need to do the following The writing method

The code is as follows:


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