I am developing a static web app via React.js. I am using the google dev tool to inspect elements. In responsive design mode, everything is fine. However, when I select a specific mobile phone the footer element is not shown when I scroll to the bottom. However, it is visible on the console when ı inspect elements I can see the HTML info. I thought that maybe somehow I fixed the height for mobile devices or smt. Then I tried the firefox dev tool and I am able to see the footer. I have no idea which one is more realistic since I didn't deploy it yet. I deleted the history of browser before I tried.
More specifically; on the chrome dev tool when I select responsive design mode and change the resolution to 375x812 (same as iPhone X), I am able to see my footer. If I select iPhone x rather than responsive design mode, then I don't see it. It is more annoying that, both cases are okay for the firefox tool and I see my footer. So what is the problem ? Why two dev tools act so so differently for the same app and more importantly which one is true ?
Okay, I figured it out. There is a zoom option next to the width and height. It was 100% for my case, which should be "fit to window". I am leaving this dumb question here, it helps if any other beginner faces the same issue.
I need to test an html file for mobile responsiveness, but all the resources I have found to do this need a URL or a localhost, is there any way to test responsiveness with just an html file?
Yes, simply open the .html file with Chrome or Firefox. These browsers have device mode.
You can change the screen size and see how it looks on mobile or tablet sized screens.
If you save your file .html you can open with firefox or chrome, but i suggest you to use firefox developer edition https://www.mozilla.org/it/firefox/developer/
If you use Firefox you can put in the menu -> development -> flexible display (ctrl+shift+m)
In Chrome (ctrl+maiusc+i + emulation)
In this page you can select the device to view.
You have a lot of options to test it, but each option has it's benefits.
You can minimize the browser!
You can use device mode from chrome,mozilla etc
You can find a lot of online responsive site testers for any resolution you want
In my opinion, the best way to test responsiveness is in Chrome. Right click on the page and inspect. Then there will be a button to turn on responsive testing. You can choose the device to see how your page will render on all kinds of devices. This is better than resizing your window because there are slight differences in how pages render on different tablets and phones.
There is nothing like using a real phone. As an example, px sizes differ between various phones and can cause troubles. The height of the URL bar comes into play in vertical flex scrolling when the display occupies 100%.
To do this kind of testing, you can use tunneling - products like https://serveo.net/ or ngrok.
I use http://www.responsinator.com
Very easy and complete, several types of mobile and table devices.
On my webpage, I use images that are 720px by 480px. If I look at them in Firefox or IE (latest version) however they look scaled up, they are considerably larger on the screen than their original version in Lightroom. If I look at the dimensions of the picture on the web though, it says that it is 720x480. If I want the files to be as big as they should be, then I have to set the width-property to 600px, which I think is odd..
The webpage uses Bootstrap 3.3.4.
There may be styles being applied by Bootstrap or something else, which are causing the issue. If you look in the inspector of your browser, it will show you all of the rules that apply to a given element. Also, your browser may be zoomed. The shortcut to reset it to default is usually Ctrl-0, though there is also usually also an option listed in the menus.
Im practicing how to create a responsive website using bootstrap. Everything was fine when i tested my site on Firefox and Chrome using the Resizer extension but when i tried to view it on Safari theres a very small but obvious discrepancy with the bottom padding in one of the boxes(the purple one with the greater than sign). Ill attached the pictures to show what i mean.
Firefox view using Resizer Extension
http://i168.photobucket.com/albums/u173/carlocarr/ScreenShot2013-11-01at52435PM_zps8da019a9.png
Safari view using Developer tools
http://i168.photobucket.com/albums/u173/carlocarr/ScreenShot2013-11-01at52455PM_zps587313c1.png
Is there any Safari Mobile specific CSS?? what should i do? help!
i heard stories that w3cSchool isn't the best resource (due to inaccuracies) but i feel this may be of some use to you. it seems that the image is being cropped but take a look at this and see your own CSS3 code to identify the issues, you may also have to consider using relative positioning as opposed to absolute.
http://www.w3schools.com/cssref/css3_browsersupport.asp
also, take into consideration that while some browsers may seem to "now" support the features of CSS3, you need to also check for to version compatibilities. You can set up your site to use specific CSS3 features depending on the versions.
I'm working on putting together a liquid style-sheet and it works wonderful. One thing that I've noticed is that my browser window in Chrome won't resize below 400px it just gets stuck there and in FF as I scale down it it just stops at around 400px and then pops a horizontal scroll bar.
When I open the site on my phone it looks perfect at around 320px, so I know it does scale lower than 400px.
I was curious if anyone knew if this was a browser/desktop thing or if I should be looking at something other than my CSS. I don't have any min-width declarations so i'm not sure what could be causing this.
Again on desktop it scales down to a min-width of about 400px and stops, but when I open it up on my phone it scales to the size of the phone screen which is roughly 320px... curious why at the very least it won't scale down to the 320px on desktop.
-edit-
Also I'm not sure if this matters but Opera allows it to scale down to pretty much nothing... So it works with Opera and not in Chrome or FF... any ideas?
Chrome cannot resize horizontally below 400px (OS X) or 218px (Windows) but I have a really simple solution to the problem:
Dock the web inspector to the right instead of to the bottom
Resize the inspector panel - you can now make the browser area really small (down to 0px)
Update: Chrome now allows you to arrange the inspector windows vertically when docked to the right! This really improves the layout.
The HTML and CSS panels fit really well and you even open a small console panel too.
This has allowed me to completely move from Firefox/Firebug to Chrome.
If you want to go a step further look at the web inspector settings (cog icon, bottom-right), and goto the user agent tab. You can set the screen resolution to whatever you like here and even quickly toggle between portrait and landscape.
UPDATE: Here is another really cool tool I've come across. http://lab.maltewassermann.com/viewport-resizer/
this may be because of the addons you installed on your browser. remove or hide all addon icons from the tool bar and try re size. when there are addons browser only resize the address bar and keeps the addons visible.
Update: 7/14/2013
With the latest chrome version, now you can re-size the address bar and it will hide the addons automatically.
I was stumped as well but ended up with a simple solution. I just created a HTML file with a link to open a new window:
Open!
This new window has nothing but the address bar and Chrome lets me freely resize this down to 111x80.
nayan9's solution works great, and can be put into a bookmark without having to create a html file. In Chrome, create a new bookmark with URL:
javascript:(function(){window.open('ANY_URL', '','width=320,height=480');})();
And give it a name of "Open Small Window" or something similar. This will allow you to easily open windows without size restrictions within chrome. Note that just copying this into your address bar won't work - chrome strips the "javascript:" out.
In case you want to reduce your screen width to emulate different devices (and why else would you want to do this?):
Chrome now has an Emulation section in its inspector, activated by clicking the little phone icon in the top menubar (between the magnifying glass and Elements):
Emulation mode allows you to set the viewport size to all common mobile screen sizes, among other nice features, like emulating touch, geolocation and even accelerometer input:
Adding to what nayan9 and drinkdecaf said, you can just throw document.URL into the call to window.open to see the page you're currently viewing in the 320 window. You might want to add some more to the width if you're expecting a scrollbar.
javascript:(function(){window.open(document.URL, '','width=320,height=480');})();
I am lazy, to make it even easier, let the bookmarklet ask the user for sizes :-D
javascript: (function() {var width = prompt('Enter window width:', '320');var height = prompt('Enter window height:','480');var url = prompt('Enter window URL');if (url.indexOf(':') < 0) {url = 'http://'+url;} window.open(url, '','width='+width+',height='+height);})()
in chrome the icons of your addons in the top right corner cause the problem
-> resize the adress-bar (where you type the urls) to maximum width (drag the bar at the right edge to the right)
or disable the icons
The DevTools in Chrome have moved on substantially from when most of these answers were posted. The best way to address this issue now is to use the emulators that are built into Chrome.
To use the emulators open DevTools (press F12) and then click on the following icon to toggle the Device Toolbar:
This will then allow you to emulate whichever mobile device or viewport size you want to.
I found a quick workaround for this.
Just install the Responsive Web Design Add-on to Chrome, and it will open a separate window without the address bar and tabs, which can be scaled down to 10 px or less.
Link here: https://chrome.google.com/webstore/detail/responsive-web-design-tes/bdpelkpfhjfiacjeobkhlkkgaphbobea/related
I've been experiencing similar issues and just found a good work around. Open up your chrome devtools and in the top left, there's a little screen and ipad icon. Click that and it opens a mobile view of your page. You can set it to predefined devices or a custom resolution. Pretty nifty actually.
Another easy solution is to click Strg+Shift+N to enter Incognito Mode. There you can resize your Browser window as you like.
I like this tool because it lets you switch quickly and also switches between portrait/horizontal easily for mobile sizes. It also allows you to make a personalized bookmark let, so if you design for obscure resolutions frequently, you can save them and use them.
I had to use one of these tools because even with the above answer I couldn't get my window to scale to 320 properly, this tool seems to be a faster solution overall.
http://lab.maltewassermann.com/viewport-resizer/
I'm always running into this issue with pinned tabs. Chrome will not resize below a horizontal width of eight visible pinned tabs if there are any! Just detach the tab that you want to resize to solve this ...
For a web developer, in order to test the responsiveness of their website in mobile or tablet whose size is less than 500px or minimum width then use developer tools to test in small screens.
For testing, go to developer tools and press ctrl+shift+M or click the device icon at the top left of the developer tools screen to toggle device mode. If the device icon is in blue colour, then you can test your website responsiveness by changing the browser window.
This is my first contribution to the Stack Overflow community, and it is my effort to give back to all you wonderful people who have made internet such a powerful tool.
Now to answer:
Safari, has this cool feature.
You need to activate safari developer option in preferences.
Screenshot of setting up preferences in Safari to activate developer menu
Once activated you can access bunch of very powerful developer tools.
One of this tool is Viewport adjustment which can used to test your website responsive layout.
To activate responsive lay out testing, one can use the shortcut Command+Ctrl+R
to activate safari view port adjustment option.
This will give you enough control to test your website on various view port sizes.
Screen shot of how your browser window will look once responsive layout test option is activated.
Link to how to activate developer menu in safari:
https://coolestguidesontheplanet.com/safari-web-developer-tools-show-dock-browser-window/
A lot of smart phones scale the page to fit into their screen size using zooming. Your minimum page width is probably 400px. Without any example code, I think that's all that can be said.