Web Front-endHTML TutorialIntroduction to the related attributes of iframe, frame and frameset in html framework_html/css_WEB-ITnose
Questions
1. Do you know the difference between iframe and frame?
2. Have you used frameset and other related attributes?
The difference between iframe and frame
I don’t know if you have used the frameset attribute in your project. The frameset attribute was used by me in the production of an online customer service system last year, because the customer service system requires There is a fixed layout, one on top, one on the bottom, etc. At that time, frameset and frame were used. After I used these attributes, I understood the difference between iframe and frame. Because before this, I generally didn’t use frames in my projects, and if I did, I would use iframes.
Let’s talk about the specific differences! The following points are summarized.
1. Frame cannot be used independently of frameSet, iframe can;
2. Frame cannot be placed in body;
The following can be displayed normally:
<!--<body>--> <frameset rows="50%,*"> <frame name="frame1" src="test1.htm"/> <frame name="frame2" src="test2.htm"/> </frameset> <!--<body>-->
The following cannot be displayed normally:
<body> <frameset rows="50%,*"> <frame name="frame1" src="test1.htm"/> <frame name="frame2" src="test2.htm"/> </frameset> <body>
On the contrary, if the iframe is placed under the frameSet attribute, it must be placed in the body
<body> <frameset> <iframe name="frame1" src="test1.htm"/> <iframe name="frame2" src="test2.htm"/> </frameset> </body>
3. iframe is an html tag and can be used anywhere in html, but frame cannot.
<body> <iframe name="frame1" src="test1.htm"/> <iframe name="frame2" src="test2.htm"/> </body> <table> <tr> <td><iframe id="" src=""></iframe></td><td></td> </tr> </table>
The frame must be nested in the frameSet and cannot be used in tags such as table.
4. The height of the frame can only be controlled through frameSet; iframe can be controlled by itself and cannot be controlled through frameSet
<!--<body>--> <frameset rows="50%,*"> <frame name="frame1" src="test1.htm"/> <frame name="frame2" src="test2.htm"/> </frameset> <!--</body>--> <body> <frameset> <iframe height="30%" name="frame1" src="test1.htm"/> <iframe height="100" name="frame2" src="test2.htm"/> </frameset> </body>
5. If in the same If the page uses more than two iframes, it can be displayed normally in IE, but only the first one can be displayed in Firefox; if more than two frames are used, it can be displayed normally in both IE and Firefox
Introduction to frameset related attributes
border Set the border thickness of the frame.
bordercolor Set the border color of the frame.
frameborder Set whether to display the frame border. The setting values are only 0 and 1; 0 means no border, 1 means to display the border.
cols
Split the page vertically. There are three numerical expression methods: "30%, 30 (or 30px),"; the number of values represents the number of divided windows and the values are separated by ",". "30%" means that the frame area occupies 30% of the entire browser page area; "30" means that the horizontal width of the area is 30 pixels; "" means that the area occupies the remaining page space. For example: cols="25%,200,*" means to divide the page into three parts, the left part accounts for 25% of the page, the middle horizontal width is 200 pixels, and the rest of the page is the right part.
rows Split the page horizontally. The numerical representation method and meaning are the same as cols.
framespacing Sets the reserved space distance between frames.
Usage
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>haorooms博客frame标准demo</title> </head> <frameset row="180,*"> <frame name="topFrame" src="topframe.html" /> <frameset cols="50%,50%"> <frame src="left.html" name="leftFrame" /> <frame src="right.html" name="rightFrame" /> </frameset> </frameset> </html>
The layout and the renderings of each part of the js selection are as follows:
I am an original article for haorooms front-end blog! Please indicate when reprinting! The source address is http://www.haorooms.com/post/html_frameset_contro
What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PMThe article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159
What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PMThe article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati
What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PMThe article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex
What is the purpose of the <iframe> tag? What are the security considerations when using it?Mar 20, 2025 pm 06:05 PMThe article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.
How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PMThe article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.
What is the viewport meta tag? Why is it important for responsive design?Mar 20, 2025 pm 05:56 PMThe article discusses the viewport meta tag, essential for responsive web design on mobile devices. It explains how proper use ensures optimal content scaling and user interaction, while misuse can lead to design and accessibility issues.
What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PMArticle discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.
How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PMThis article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
SublimeText3 Linux new version
SublimeText3 Linux latest version
