HTML5 text barrage effect-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

HTML5 text barrage effect

韦小宝

Nov 22, 2017 am 11:32 AM

h5html5letter

HTML5The text barrage effect is quite interesting. If you are interested in HTML5, study it and learnHTML5.

Implementation demonstration:

Code demonstration:

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8"/>
<title>PHP中文网--HTML5文字弹幕效果代码</title>
<style type="text/css">
*{
	margin:0;
	padding:0;
	list-style: none;
	border:0;
}
body{
	background: #bcbcbc;
}
.main{
	width: 600px;
	height: 400px;
	margin:0 auto;
	position: relative;
}
.main img{
	position: absolute;
	right: 0;
	bottom:0;
	width: 100px;
	height: 100px;
}
#canvas{
	display: block;
	background: #000;
}
</style>
</head>
<body>

<div class="main">
	<canvas id="canvas">嗨帅哥您的浏览器不支持canvas赶紧去升级吧</canvas>

</div>

<script type="text/javascript">
	var canvas=document.getElementById(&#39;canvas&#39;);
	var ctx=canvas.getContext("2d");
	var width=600;
	var height=400;
	var colorArr=["yellow","pink","orange","red","green"];
	var textArr=[
		"PHP中文网不错我经常去！",
		"我用双手成就你的梦想",
		"犯我德邦者，虽远必诛！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"陷阵之志，有死无生",
		"即使敌众我寡，末将亦能万军从中取敌将首级！"
	]
	canvas.width=width;
	canvas.height=height;
	var image=new Image();

	ctx.font = "20px Courier New";
	var numArrL=[80,100,5,300,500,430];//初始的X
	var numArrT=[80,100,20,300,380,210];//初始的Y
	setInterval(function(){
	ctx.clearRect(0,0,canvas.width,canvas.height);
	ctx.save();
	for(var j=0;j<textArr.length;j++){
		numArrL[j]-=(j+1)*0.6;
		ctx.fillStyle = colorArr[j]
		ctx.fillText(textArr[j],numArrL[j],numArrT[j]);
	}
	for(var i=0;i<textArr.length;i++){
		if(numArrL[i]<=-500){
			numArrL[i]=canvas.width;
		}
	}
	ctx.restore();
	},30)

</script>


</body>
</html>

The above is the HTML5 text bomb Screen effect source code, interested students can also go to PHP中文网 to search for more related knowledge~

Related recommendations:

HTML5 image upload preprocessing

Use HTML5 to create screen gesture unlock function

Use Tutorial on writing login page with html5 and css3

The above is the detailed content of HTML5 text barrage effect. For more information, please follow other related articles on the PHP Chinese website!

Statement

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

Beyond HTML: Essential Technologies for Web DevelopmentApr 26, 2025 am 12:04 AM

To build a website with powerful functions and good user experience, HTML alone is not enough. The following technology is also required: JavaScript gives web page dynamic and interactiveness, and real-time changes are achieved by operating DOM. CSS is responsible for the style and layout of the web page to improve aesthetics and user experience. Modern frameworks and libraries such as React, Vue.js and Angular improve development efficiency and code organization structure.

What are boolean attributes in HTML? Give some examples.Apr 25, 2025 am 12:01 AM

Boolean attributes are special attributes in HTML that are activated without a value. 1. The Boolean attribute controls the behavior of the element by whether it exists or not, such as disabled disable the input box. 2.Their working principle is to change element behavior according to the existence of attributes when the browser parses. 3. The basic usage is to directly add attributes, and the advanced usage can be dynamically controlled through JavaScript. 4. Common mistakes are mistakenly thinking that values need to be set, and the correct writing method should be concise. 5. The best practice is to keep the code concise and use Boolean properties reasonably to optimize web page performance and user experience.

How can you validate your HTML code?Apr 24, 2025 am 12:04 AM

HTML code can be cleaner with online validators, integrated tools and automated processes. 1) Use W3CMarkupValidationService to verify HTML code online. 2) Install and configure HTMLHint extension in VisualStudioCode for real-time verification. 3) Use HTMLTidy to automatically verify and clean HTML files in the construction process.

HTML vs. CSS and JavaScript: Comparing Web TechnologiesApr 23, 2025 am 12:05 AM

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.

HTML as a Markup Language: Its Function and PurposeApr 22, 2025 am 12:02 AM

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

The Future of HTML, CSS, and JavaScript: Web Development TrendsApr 19, 2025 am 12:02 AM

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.

HTML: The Structure, CSS: The Style, JavaScript: The BehaviorApr 18, 2025 am 12:09 AM

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 of HTML: Evolution and Trends in Web DesignApr 17, 2025 am 12:12 AM

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.

See all articles