viewport

Verification of Element in Viewport in Selenium

由 孤街醉人 提交于 2019-11-27 03:36:00
问题 How to verify whether an element is visible in viewport(visibility of browser) or not using Selenium? I've tried with the below code, but Point object(Y value) returns huge value as page is scrollable. Here am getting element dimensions, location and Dimensions of Browser and comparing them. Dimension weD = element.getSize(); //to get the element Dimensions Point weP = element.getLocation(); // getting the location of the element in the page. Dimension d = driver.manage().window().getSize();

To “user-scalable=no” or not to “user-scalable=no”

由 自作多情 提交于 2019-11-27 03:34:43
问题 I've read different threads but never got to a clear conclusion, what are the differences, advantages and disadvantages of using user-scalable=no on case A or case B? I'm going to do a responsive website, which case is better then? CASE A: <meta name="viewport" content="width=device-width, user-scalable=no"> CASE B: <meta name="viewport" content="width=device-width"> 回答1: You don't need to use user-scalable=no for responsive web design. You use it if you want your web app to feel more like a

处理移动端pdf展示问题

由 微笑、不失礼 提交于 2019-11-27 03:21:41
npm install pdfjs-dist --save //安装 <script> import PDFJS from "pdfjs-dist"; import pdfjsLib from "pdfjs-dist"; export default { data(){ return { pdfDoc: null, pdfList: 0 } }, mounted() { this.initThePDFJSLIB(); let url = '' console.log(url); this.loadFile(url); }, methods: { // 初始化pdfjs initThePDFJSLIB() { pdfjsLib.GlobalWorkerOptions.workerSrc = "pdfjs-dist/build/pdf.worker.js"; }, _renderPage(num) { this.pdfDoc.getPage(num).then(page => { let canvas = document.getElementById("the-canvas" + num); let ctx = canvas.getContext("2d"); let dpr = window.devicePixelRatio || 1; let bsr = ctx

How to set viewport dynamically?

由 眉间皱痕 提交于 2019-11-27 03:06:03
问题 If I want to change the viewport tag dynamically, what do I need to do? For Mobile <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" /> iPad (width over 768px) <meta name="viewport" content="width=device-width, initial-scale=0.7, maximum-scale=2, user-scalable=yes" /> 回答1: For sample : <meta name="viewport" content="width = 384" id="myViewport"> It sets the layout viewport width to 384 pixels. This works in most modern browsers; Nokia

scale fit mobile web content using viewport meta tag

由 血红的双手。 提交于 2019-11-27 02:51:40
I'm trying to figure out how to leverage the mobile viewport meta tag to automatically zoom the contents of a HTML page to fit into a web view. Constraints: The HTML may or may not have fixed size elements (ex img has a fixed width of 640). In other words I don't want to force the content to be fluid and use %'s. I do not know the size of the webview, I just know its aspect ratio For example, if I have a single image (640x100px) I want the image to zoom out if the webview is 300x250 (scale down to fit). On the other hand, if the webview is 1280x200 I want the image to zoom in and fill the

CSS3/CSS之居中解析（水平+垂直居中、水平居中，垂直居中）

由 旧巷老猫 提交于 2019-11-27 00:52:04
首先，我们来看下垂直居中： （1）、如果是单行文本，则可以设置的line-height的数值，让其等于父级元素的高度！ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> .box{ background: green; height:200px; } a {height:100%; line-height: 200px; color:red; } </style> </head> <body> <div class="box"> <a href="">ggg </a> </div> </body> </html> （2）、如果元素是行内块级元素，一般会使用diaplay:inline-block,vertical-align:middle，还有一个伪元素让元素内容处于容器中央！给父元素添加伪元素！ <!DOCTYPE html> <html lang="en"> <head> <meta

Using jquery to get element's position relative to viewport

由 余生颓废 提交于 2019-11-26 23:53:31
问题 What's the proper way to get the position of an element on the page relative to the viewport (rather than the document). jQuery.offset function seemed promising: Get the current coordinates of the first element, or set the coordinates of every element, in the set of matched elements, relative to the document. But that's relative to the document. Is there an equivalent method that returns offsets relative to the viewport? 回答1: Look into the Dimensions plugin, specifically scrollTop() /

jQuery trigger when 2/3s of div are in viewport

由 纵饮孤独 提交于 2019-11-26 23:19:24
I need to change "active" menu item on one-page website, when user slide down or up and something like two thirds of div are visible in viewport. I found some jQuery plugins, but all of them was when whole div is viewed. Simply I need to act same like on this page: https://vivaldi.com/ And my page will look something like: http://jsfiddle.net/kwbddvau/2/ html{height:calc(100% - 100px) !important;width:100% !important; margin:0px; padding:0px;} body{height:500% !important;width:100% !important; margin:0px; padding:0px;} .page {height:20% !important; width:100% !important;} #page1{background

What are the device-width css viewport sizes of the iPhone6 and iPhone 6 Plus

由 不羁岁月 提交于 2019-11-26 22:35:52
问题 The iPhone 6 and iPhone 6 Plus were just announced. But as usual, phone specs never give the meta viewport device-width sizes in CSS Pixels or DPR at width=device-width,initial-scale=1 . Predictions have been made, speculating on 375/414px viewport width, but that still remains unclear... NB: Please don't speculate or post answers with the known overall device resolution or specs, it's not what I am looking for. I want the default responsive portrait and landscape viewport-width in pixels.

vue移动端开发笔记

由 爱⌒轻易说出口 提交于 2019-11-26 20:19:42
移动端开发 多页面应用特点 页面跳转,返回html 优点: 首屏时间快，搜索引擎效果好 缺点: 页面切换慢 单页面应用特点(vue) 页面跳转,js渲染 优点: 页面切换快 缺点: 首屏时间稍慢，搜索引擎(SEO)优化效果差 服务器端渲染可以完美的解决单页面所遇到的问题 Viewport 基础 width 控制 viewport 的大小, device-width为设备的宽度 initial-scale 初始的缩放比例 minimum-scale 允许用户缩放到的最小比例 maximum-scale 允许用户缩放到的最大比例 user-scalable 用户是否可以手动缩放 < meta name = "viewport" content = " width = device - width , initial - scale = 1.0 , user - scalable = 1.0 , minimum - scale = 1.0 , maximum - scale = 1.0 " > 移动端300ms延迟 移动端浏览器click事件为什么会有300ms的延迟呢？因为在手机上有个双击方案: 在手机上快速点击两下，实现页面放大；再次双击，恢复到原始比例 那它是如何实现的呢？浏览器在捕捉到第一次点击事件后，会等待一段时间，如果在这段时间内，用户没有再次进行点击操作的话，就执行单击事件
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