responsive

I'm trying to get the right column of a 3 column layout to move below the left column on smaller screens. Right now the right column moves in the correct direction except that it hangs below the middle column. I created this basic simulation of my issue. Note the middle column will always be longer than the left and right columns as shown here. <style> .container { max-width:1280px; width:100%; height:200px; margin-left:auto; margin-right:auto; display:flex; flex-wrap: wrap; } .leftsidebar { width:20%; height:200px; background-color:gray; margin-top:15px; } .middle { width:57%; background

响应式网页设计基础【从零开始】 如今的互联网事业突飞猛进，可谓一日千里。响应式网页设计凭借其能为开发者提高开发效率，降低维护成本，提升用户体验等突出优势更是为Web 2.0时代掀起了又一股狂潮，致使无数开发者倾心致力于响应式网页设计。纷纷为响应式设计贡献自己的绵薄之力，当然各大软件制造上肯定不会放过如此良机，也纷纷推出各类响应式设计软件。理所当然不乏优秀之作： Groundwork ，一款开源的响应式设计工具，在 Github 上可以找到其项目源代码。 Groundwork 提供多套通用响应式页面模版，用于快速构建Web响应式应用程序。此外，它还提供丰富的UI组件，详情可以访问 Groundwork官网 。 FROONT ,一个网页版的响应式开发工具。提供在线编辑，布局调整，以及在不同临界值之间切换预览等响应式开发必备功能，还能导出html/css文件，实属强大的响应式开发工具，更具体的介绍请参看 FROONT官网 ，注册并登录即可体验在线响应式开发。 Adobe Edge Reflow CC ，由世界著名软件大户Adobe公司开发的响应式网页设计软件。和Adobe Dreamweaver、Adobe Photoshop等知名软件一样，Adobe Edge Reflow CC是一款桌面应用程序，配合 Adobe Edge Inspect CC

I'm just starting on a website and I already encounter a small problem where I can't find a specific solution to. I wanted to make my website background fit any screen size in width, height does not matter. This is the link to my image: ../IMAGES/background.jpg EDIT I have no idea what's wrong, but for some reason the body doesn't even want to get the background image. It just displays a plain white background. body {background-image:url(../IMAGES/background.jpg);} you can do this with this plugin http://dev.andreaseberhard.de/jquery/superbgimage/ or background-image:url(../IMAGES/background

I'm currently working on a mobile landing page for a company. It's a really basic layout but below the header there's an image of a product which will always be 100% width (the design shows it always going from edge to edge). Depending on the width of the screen the height of the image will obviously adjust accordingly. I originally did this with an img (with a CSS width of 100%) and it worked great but I've realised that I'd like to use media queries to serve different images based on different resolutions - let's say a small, medium and a large version of the same image, for example. I know

背景 2013年是网页设计响应式的一年。所谓响应式网页设计，是由Ethan Marcotte在2010年提出的名词，指可以自动识别屏幕宽度、并做出相应调整的网页设计。简单来说就是同一张网页自动适应不同大小的屏幕，根据屏幕宽度，自动调整布局。这是一个多么强大的概念，一套代码兼容所有设备，节省维护成本，提高开发效率。然而，现实并非如此完美，在其强大的背后也有鲜为人知的辛酸苦楚。 众所周知，在响应式设计出现或者说在各种移动设备不断迅速抢占PC市场之前，所有的网页设计几乎不要求兼容移动设备，而在PC端的开发调试已经相当成熟，各种调试工具纷纷脱颖而出，诸如：Firebug、Chrome开发者工具等。这让开发者如鱼得水，在传统网页设计中游刃有余。 而如今的互联网市场已经有很大一部分属于移动设备的领地，网页设计兼容移动设备刻不容缓，而响应式设计的提出让这一目标成为可能，甚至可以说是网页设计兼容移动设备的完美解决方案。但是，光有方案只能是空谈，几乎没有人能够不经过反复调试就能写出完全正确的代码，移动设备上的开发调试给网页设计带来了阻力，让开发者不得不投入更多的成本用以对移动设备兼容的调试。所以良好的移动开发调试工具必须问世，而拥有一款优秀的移动开发调试工具，必然给响应式网页设计锦上添花。 人类的智慧是无穷的，2010年底weinre问世，至今weinre已经发布2.0.0版本

For the smallest xs size, even if I have the columns adding up to 12, they don't work as expected if screen width decreases beyond a certain limit. For instance:- <div class="container"> <div class="row"> <div class="col-xs-2"> </div> <div class="col-xs-1 col-xs-offset-8> </div> <div class="col-xs-1> </div> </div> I would expect the if I decrease the size the last column will get stacked up to the end of the screen. However, this is not the case. As the screen decreases beyond a certain limit, the last column wraps up toward the beginning of the screen. I have thought about writing css code to