noscript

Shouldn't we use <noscript> element?

由 。_饼干妹妹 提交于 2019-11-28 02:50:52
I found some good cons here: The noscript element only detects whether the browser has JavaScript enabled or not. If JavaScript is disabled in the Firewall rather than in the browser then the JavaScript will not run and the content of the noscript element will not be displayed. Many scripts are dependent on a specific feature or features of the language being supported in order for them to be able to run (for example document.getElementById). Where the required features are not supported the JavaScript is unable to run but since JavaScript itself is supported the noscript content will not be

web前端入门到实战：利用CSS重置网站的样式

由 半城伤御伤魂 提交于 2019-11-28 01:26:53
许多前端开发人员都在用 Normalize 为他们的网站设计样式。一些人喜欢在 Normalize.css 中添加一些自己偏好的样式，我也一样。 在本文中，我会与你分享我自己的 CSS reset 项目（除了 Normalize.css 之外我还使用它们）。 我将 reset 项分为8类： 1.盒子大小 2.删除边距和填充 3.列表 4.表格和按钮 5.图像和嵌入视频 6.表格 7.隐藏属性 8…Noscript 调整盒子大小 box-sizing 属性改变了 CSS 盒子模型的工作方式。它会改变计算 width、 height、 padding、 border 和 margin 的方式。 box-sizing 的默认设置是 content-box。我更喜欢将其改为 border-box，因为这样更容易设置 padding 和 width.。 html { box-sizing: border-box; } *, *::before, *::after { box-sizing: inherit; } 删除边距和填充 浏览器对不同元素 margin 和 padding 的设置各不相同。当我不了解这些时，默认设置会让我失望。但是我更喜欢通过自己编码设置所有边距和填充。 对web前端这门技术感兴趣的小伙伴可以加入到我们的学习圈来，正因为我不是211，985，只是个普通的本科生

Access Contents of <noscript> with Javascript

由 自古美人都是妖i 提交于 2019-11-27 17:25:02
问题 <noscript><div id="example">I want to get this innerHTML</div></noscript> <script type="text/javascript"> alert($('example').innerHTML);</script> This javascript snippet just returns an empty string. Is there a way of getting the contents of a noscript node? p.s. I'm using prototype on this particular project. 回答1: If scripting is enabled, the noscript element is defined as containing only text - though it must be parsable text, with some restrictions on content. With that in mind, you should

Html CSS学习（三）Html文档流

由 泄露秘密 提交于 2019-11-27 16:44:12
Html文档流 刚开始学习Html时，并没有太多的关注于行内元素、块级元素、文档的渲染过程等内容，直到后面学习Div+CSS布局时，在经过了各种的浮动、设置内外边距、边框等时，觉得布局好难的，原本，好好的布局，由于内容的改动或者内外边距的调整，从而导致了布局的变动，此时，才逐渐明白了文档流以及行内元素、块级元素的概念，今天再重新对这部分内容进行梳理，以更好的掌握。 一、什么是文档流 首先来看一个最简单的html文档，其代码内容如下： <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <ul> <li>Java程序设计</li> <li>ASP.NET程序设计</li> <li>Html与CSS网页设计</li> </ul> <span>Hello</span> <span>文档流</span> <p> 这是一段文本字 </p> </body> </html> 其页面结果如下： 学习Html时，都知道，页面中的内容是body标签内部的内容。从这个例子中，可以知道，Html页面在呈现时，是从上向下依次进行呈现的，也就是说，哪个元素在前面，就先呈现它。在body中，首先是ul标签，这是一个列表，其中li是列表项，从结果来看

Noscript Tag, JavaScript Disabled Warning and Google Penalty

由 我怕爱的太早我们不能终老 提交于 2019-11-27 11:06:09
I have been using a noscript tag to show a warning when users have JavaScript disabled or are using script blocking plugins like Noscript. The website will not function properly if JavaScript is disabled and users may not figure out why it is not working without the warning. After the latest Google algorithm shuffle, I have seen the daily traffic drop to about 1/3 of what it was in the previous months. I have also seen pages that were ranking #1 or #2 in the SERPS drop out of the results. After doing some investigating in webmaster tools, I noticed that "JavaScript" is listed as #16 in the

Is there a HTML opposite to <noscript>?

由 空扰寡人 提交于 2019-11-27 10:38:21
Is there a tag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they can't use the form if they don't have it. The only way I know how to do this is with the document.write(); method in a script tag, and it seems a bit messy for large amounts of HTML. You could have an invisible div that gets shown via JavaScript when the page loads. Easiest way I can think of: <html> <head>

Check if Javascript is Enabled (Serverside) with Rails

由 假装没事ソ 提交于 2019-11-27 06:53:24
问题 How would you check if javascript is enabled in Rails? So that I could do something like this in the views: <div> <% if javascript_enabled? %> <p>Javascript Enabled!</p> <%- else -%> <p>No Javascript</p> <%- end -%> </div> 回答1: You can detect it, but it isn't pretty. First, you need a new controller with an action that updates a timeout in the session: class JavascriptController < ApplicationController def confirm session[:javascript_updated] = Time.now end end Next you need to include a

00HTML

由 陌路散爱 提交于 2019-11-26 17:23:10
本文转载于: 猿2048 网站 https://www.mk2048.com/blog/blog.php?id=baaaa&title=00HTML 　　 一.概述 超文本标记语言（Hyper Text Markup Language），HTML是一门描述性的语言. 基本语法： 　　<标签> 内容 </标签> ** 在一个网页中，HTML是网页的结构，CSS是网页的外观，JS是网页的行为。 二.文档结构 1.文档声明DOCTYPE 文档声明用于识别HTML的版本，声明引用DTD（文档类型定义），规定了标记语言的规则。 /////严格模式 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> /////过渡模式 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> /////HTML5版，简洁通用，没有兼容问题 <!DOCTYPE html> ** 注意事项： 在没有文档声明时，IE浏览器就会进入怪异模式，也就是，浏览器会根据自己的标准去解释文档，如果加上了声明，就会按照w3c标准解释。 在ie盒子模型中，W

Noscript Tag, JavaScript Disabled Warning and Google Penalty

由 浪子不回头ぞ 提交于 2019-11-26 15:27:25
问题 I have been using a noscript tag to show a warning when users have JavaScript disabled or are using script blocking plugins like Noscript. The website will not function properly if JavaScript is disabled and users may not figure out why it is not working without the warning. After the latest Google algorithm shuffle, I have seen the daily traffic drop to about 1/3 of what it was in the previous months. I have also seen pages that were ranking #1 or #2 in the SERPS drop out of the results.

Is there a HTML opposite to <noscript>?

由 孤街醉人 提交于 2019-11-26 15:16:00
问题 Is there a tag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they can't use the form if they don't have it. The only way I know how to do this is with the document.write(); method in a script tag, and it seems a bit messy for large amounts of HTML. 回答1: You could have an
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