Home Web Front-end HTML Tutorial HTML CSS??zoom learning_html/css_WEB-ITnose

HTML CSS??zoom learning_html/css_WEB-ITnose

Jun 24, 2016 pm 12:03 PM
css html zoom study

When I was working on a phased project in college, I encountered a very strange phenomenon: kindEditor's function of uploading images failed, but it worked just fine after removing the styles referenced by jsp. This indicated that there was a problem with the styles, so I deleted a style and tested it. , so the culprit falls on zoom. This is the first time we "met each other". Today is the weekend, a rare leisure time. Let me summarize it now:

First, let’s talk about the role of zoom: zoom is used to set objects. Zoom attribute value: normal | |

1. Normal:

Code 1-1 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:normal;}		</style>	</head>	<body>		<h1 style="font-size:5pt;">zoom</h1>		<h1>zoom</h1>		<h1 class="test">zoom</h1>	</body></html>
Copy after login
Figure 1-1

Code 1-2 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:normal;}		</style>	</head>	<body>		<img src="./test.png" width = "50" height = "50"></img><br>		<img src="./test.png"></img><br>		<img src="./test.png" class="test"></img>	</body></html>
Copy after login

Figure 1-2

Summary:

a. Figure 1-1: As can be seen from the code The font size of the first "zoom" is "5pt", the font size of the second "zoom" uses the default value, and the font size of the third "zoom" is added to the "zoom:normal;" style list;

b. Figure 1-2 From the code, you can see that the width of the first image is "50", the height is also "50" and the size is "5pt". The second image size uses the default value. The "zoom:normal;" style list has been added to the three pictures;

Through the description of points a and b, we can get the conclusion: n normal is used to make the element use its actual size;

2. : Use floating point numbers to define the scaling ratio. Negative values ​​are not allowed;

Code 2-1 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:3;}		</style>	</head>	<body>		<h1>zoom</h1>		<h1 class="test">zoom</h1>	</body></html>
Copy after login

Figure 2-1

Code 2-2 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:3;}		</style>	</head>	<body>		<img src="./test.png"></img><br>		<img src="./test.png" class="test"></img>	</body></html>	
Copy after login

Figure 2-2

3. : Use percentage to define the scaling ratio. Negative values ​​are not allowed;

Code 3-1 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:300%;}		</style>	</head>	<body>		<h1>zoom</h1>		<h1 class="test">zoom</h1>	</body></html>	
Copy after login

Figure 3-1

Code 3-2 is as follows:

<!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">      <head>          <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />  		<style type="text/css">			.test{zoom:300%;}		</style>	</head>	<body>		<img src="./test.png"></img><br>		<img src="./test.png" class="test"></img>	</body></html>	
Copy after login

Fig. 3-2

Note: Due to the defect of zoom compatibility, there are not many actual applications. Just a general understanding is enough.

【0 points to download demo resources】

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to use bootstrap in vue How to use bootstrap in vue Apr 07, 2025 pm 11:33 PM

Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.

The Roles of HTML, CSS, and JavaScript: Core Responsibilities The Roles of HTML, CSS, and JavaScript: Core Responsibilities Apr 08, 2025 pm 07:05 PM

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.

Understanding HTML, CSS, and JavaScript: A Beginner's Guide Understanding HTML, CSS, and JavaScript: A Beginner's Guide Apr 12, 2025 am 12:02 AM

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

React's Role in HTML: Enhancing User Experience React's Role in HTML: Enhancing User Experience Apr 09, 2025 am 12:11 AM

React combines JSX and HTML to improve user experience. 1) JSX embeds HTML to make development more intuitive. 2) The virtual DOM mechanism optimizes performance and reduces DOM operations. 3) Component-based management UI to improve maintainability. 4) State management and event processing enhance interactivity.

How to set up the framework for bootstrap How to set up the framework for bootstrap Apr 07, 2025 pm 03:27 PM

To set up the Bootstrap framework, you need to follow these steps: 1. Reference the Bootstrap file via CDN; 2. Download and host the file on your own server; 3. Include the Bootstrap file in HTML; 4. Compile Sass/Less as needed; 5. Import a custom file (optional). Once setup is complete, you can use Bootstrap's grid systems, components, and styles to create responsive websites and applications.

How to write split lines on bootstrap How to write split lines on bootstrap Apr 07, 2025 pm 03:12 PM

There are two ways to create a Bootstrap split line: using the tag, which creates a horizontal split line. Use the CSS border property to create custom style split lines.

How to insert pictures on bootstrap How to insert pictures on bootstrap Apr 07, 2025 pm 03:30 PM

There are several ways to insert images in Bootstrap: insert images directly, using the HTML img tag. With the Bootstrap image component, you can provide responsive images and more styles. Set the image size, use the img-fluid class to make the image adaptable. Set the border, using the img-bordered class. Set the rounded corners and use the img-rounded class. Set the shadow, use the shadow class. Resize and position the image, using CSS style. Using the background image, use the background-image CSS property.

How to use bootstrap button How to use bootstrap button Apr 07, 2025 pm 03:09 PM

How to use the Bootstrap button? Introduce Bootstrap CSS to create button elements and add Bootstrap button class to add button text

See all articles