HTML5 SVG之矩形简单示例分享_html/css_WEB-ITnose
最近我初学HTML5,刚在一步步学习SVG,积累了一些个人心得和程序代码,希望和大家分享,今天分享“svg之矩形”部分
1、简单矩形
效果图如下:
关键代码:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100"></rect> </svg>
代码解析:
rect 代表矩形;
rect 元素的 width 和 height 属性可定义矩形的高度和宽度;
2、矩形填充颜色及边框
效果图如下:
关键代码:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100" <span style="font-family: Arial, Helvetica, sans-serif;">style="fill:deepskyblue;stroke-width:2;stroke:rgb(0,0,0);"</span><span style="font-family: Arial, Helvetica, sans-serif;">></rect> </span> </svg>
代码解析:
CSS 的 fill 属性定义矩形的填充颜色(rgb 值、颜色名或者十六进制值);
CSS 的 stroke-width 属性定义矩形边框的宽度;
CSS 的 stroke 属性定义矩形边框的颜色
3、矩形透明度
效果图如下:
关键代码:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100" style="fill:deepskyblue;stroke-width:2;stroke:rgb(0,0,0);fill-opacity:0.5;stroke-opacity:0.9;opacity:0.5;"></rect> </svg>
代码解析:
CSS 的 fill-opacity 属性定义填充颜色透明度(合法的范围是:0 - 1);
CSS 的 stroke-opacity 属性定义边框颜色的透明度(合法的范围是:0 - 1);
CSS 的 opacity 属性定义整个元素的不透明度(合法的范围是:0 - 1);
4、矩形位置
效果图如下:
关键代码:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100" style="fill:deepskyblue;stroke-width:2;stroke:rgb(0,0,0);fill-opacity:0.5;stroke-opacity:0.9;opacity:0.5;" x="0" y="20"></rect> </svg>
x 属性定义矩形的左侧位置(例如,x="0" 定义矩形到左侧的距离是 0px);
y 属性定义矩形的顶端位置(例如,y="0" 定义矩形到顶端的距离是 0px)
5、圆角矩形
效果图如下:
关键代码:
<svg xmlns="http://www.w3.org/2000/svg" version="1.1"> <rect width="300" height="100" style="fill:deepskyblue;stroke-width:2;stroke:rgb(0,0,0);fill-opacity:0.5;stroke-opacity:0.9;opacity:0.5;" x="0" y="20" rx="20" ry="20"></rect> </svg>
代码解析:
rx 和 ry 属性可使矩形产生圆角(和css3圆角属性类似)
好了今天的分享这里结束,我也是一边学习一边分享的,若有错误的地方请大家指正,下次分享“svg之圆形”部分,希望大家届时来浏览,谢谢大家。

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

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











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

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML, CSS and JavaScript are the core technologies for building modern web pages: 1. HTML defines the web page structure, 2. CSS is responsible for the appearance of the web page, 3. JavaScript provides web page dynamics and interactivity, and they work together to create a website with a good user experience.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.
