responsive-design interview questions
Top responsive-design frequently asked interview questions
I am using the Facebook like box code in my side bar by pasting the Facebook code into a text widget. My theme is responsive, and I'd like to get the like box to resize correctly. I found this tutorial but he says the way he is doing it, isn't "fully responsive" so I didn't know if there was a better way to do it.
Source: (StackOverflow)
I have a site to put together that has a fixed aspect ratio of approximately 16:9 landscape, like a video.
I want to have it centred and expand to fill the available width, and the available height, but never to grow larger on either side.
For example:
- A tall and thin page would have the content stretching the full width while maintaining a proportional height.
- A short wide page would have the content stretching the full height, with a proportional width.
There are two methods I've been looking at:
- Use an image with the right aspect ratio to expand a container
div, but I couldn't get it to behave the same way across major browsers.
- Setting a proportional bottom padding, but that only works relatively to the width and ignores the height. It just keeps getting bigger with the width and displays vertical scroll bars.
I know you could do this with JS quite easily, but I'd like a pure CSS solution.
Any ideas?
Source: (StackOverflow)
This question already has an answer here:
I am trying to build a responsive layout using bootstrap and currently am defining some of the titles with font-size:3em;
But when the layout is shrunk down this is too big. How can I responsively reduce the size of the text?
Source: (StackOverflow)
This might sound like a silly question.
If I use this CSS snippet for regular displays (Where box-bg.png is 200px by 200px);
.box{
background:url('images/box-bg.png') no-repeat top left;
width:200px;
height:200px
}
and if I use a media query like this to target retina displays (With the @2x image being the high-res version);
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
.box{background:url('images/box-bg@2x.png') no-repeat top left;}
}
Do I need to double the size of the .box div to 400px by 400px to match the new high res background image?
Source: (StackOverflow)
I'm developing a site around the "responsive design" concept, but the facebook social plugins are static width and "break" the layout when it's re-sized.
Using media queries, I've set the plugins to hide on low-res browsers (mobile, etc...). However, on desktop browsers, when the browser window is re-sized smaller, but not so small to hide the plugins, they break out of the layout.
Any way to set a fluid width for the Facebook social plugins?
Source: (StackOverflow)
Since Bootstrap 3 there's no longer seperate files for responsive and standard stylesheets. So how can I easily remove the responsive features?
Source: (StackOverflow)
I am testing out Bootstrap 3 responsiveness navbar and I have a demo website. When I resize the browser on a desktop, it all works fine including the nav bar which become collapsible menu with a small icon on the top which I can click to see more menu buttons.
But when I tried it from a mobile browser (I tried it on chrome and internet browser on an Android), I didn't see the responsive design. I could only see very small version of desktop like website.
Could anyone point out what I am doing wrong?
Source: (StackOverflow)
I have a website (g-floors.eu) and I want to make the background (in css I have defined a bg-image for the content) also responsive. Unfortunately I really don't have any idea on how to do this except for one thing that I can think of but it's quite a workaround. Creating multiple images and then using css screen size to change the images but I wanna know if there is a more practical way in order to achieve this.
Basically what I wanna achieve is that the image (with the watermark 'G') automatically resizes without displaying less of the image. If it's possible of course
link: g-floors.eu
Code I have so far (content part)
#content
{
background-image: url('../images/bg.png');
background-repeat: no-repeat;
position: relative;
width: 85%;
height: 610px;
margin-left: auto;
margin-right: auto;
}
Source: (StackOverflow)
I have the following code which sets up a container which has a height that changes with the width when the browser is re-sized (to maintain a square aspect ratio).
HTML
<div class="responsive-container">
<div class="dummy"></div>
<div class="img-container">
<IMG HERE>
</div>
</div>
CSS
.responsive-container {
position: relative;
width: 100%;
border: 1px solid black;
}
.dummy {
padding-top: 100%; /* forces 1:1 aspect ratio */
}
.img-container {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
How can I vertically align the IMG inside the container? All my images have variable heights and the container can't have a fixed height/line height because it's responsive... Please help!
Source: (StackOverflow)
(This is a multi-part question, I will try my best to summarise the scenario.)
We are currently building a responsive web app (news reader) that allow users to swipe between tabbed content, as well as scroll vertically inside each tabbed content.
A common approach to the problem is to have a wrapper div that fills the browser viewport, set overflow to hidden or auto, then scroll horizontally and/or vertically inside it.
This approach is great but has one main drawback: since the height of the document is exactly the same as the browser viewport, the mobile browser will not hide the address bar/navigation menu.
There are numerous hacks and viewport properties that enable us to get more screen real estate, but none are quite as effective as minimal-ui (introduced in iOS 7.1).
News came yesterday that iOS 8 beta4 had removed minimal-ui from Mobile Safari (see Webkit section in iOS 8 Release Notes), which left us wondering:
Q1. Is it still possible to hide the address bar on Mobile Safari?
As far as we know, iOS 7 no longer responds to the window.scrollTo hack, this suggests we have to live with the smaller screen space, unless we adopt a vertical layout or use mobile-web-app-capable.
Q2. Is it still possible to have a similar soft fullscreen experience?
By soft fullscreen I really mean without using the mobile-web-app-capable meta tag.
Our web app is built to be accessible, any page can be bookmarked or shared using the native browser menu. By adding mobile-web-app-capable we prevent users from invoking such menu (when it's saved to homescreen), which confuses and antagonises users.
minimal-ui used to be the middle-ground, hiding the menu by default but keeping it accessible with a tap -- though Apple might have removed it due to other accessibility concerns (such as users not knowing where to tap to activate the menu).
Q3. Is a fullscreen experience worth the trouble?
It would seem that a fullscreen API is not coming to iOS anytime soon, but even if it is, I don't see how the menu will be kept accessible (same goes for Chrome on Android).
In this case, maybe we should just leave mobile safari as it is, and account for viewport height (for iPhone 5+, it's 460 = 568 - 108, where 108 includes the OS bar, address bar and navigation menu; for iPhone 4 or older, it's 372).
Would love to hear some alternatives (besides building a native app).
Source: (StackOverflow)
The iPhone 5 has a longer screen and it's not catching my website's mobile view. What are the new responsive design queries for the iPhone 5 and can I combine with existing iPhone queries?
My current media query is this:
@media only screen and (max-device-width: 480px) {}
Source: (StackOverflow)
Looking through bootstrap it looks like they support collapsing the menubar items for smaller screens. Is there something similar for other items on the page?
For example, I have a along with nav-pills floated right. On a small screen this causes issues. I'd love to at least put it into a similar click-to-show-more dropdown.
Is this possible within existing Bootstrap framework?
Source: (StackOverflow)
This question already has an answer here:
When I give an image a percent width or height only it will grow/shrink keeping its aspect ratio, but if I want the same effect with another element, is it possible at all to tie the width and the height together using percentage?
Source: (StackOverflow)
Assume I have a histogram script that builds a 960 500 svg graphic. How do I make this responsive so on resize the graphic widths and heights are dynamic?
<script>
var n = 10000, // number of trials
m = 10, // number of random variables
data = [];
// Generate an Irwin-Hall distribution.
for (var i = 0; i < n; i++) {
for (var s = 0, j = 0; j < m; j++) {
s += Math.random();
}
data.push(s);
}
var histogram = d3.layout.histogram()
(data);
var width = 960,
height = 500;
var x = d3.scale.ordinal()
.domain(histogram.map(function(d) { return d.x; }))
.rangeRoundBands([0, width]);
var y = d3.scale.linear()
.domain([0, d3.max(histogram.map(function(d) { return d.y; }))])
.range([0, height]);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
svg.selectAll("rect")
.data(histogram)
.enter().append("rect")
.attr("width", x.rangeBand())
.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return height - y(d.y); })
.attr("height", function(d) { return y(d.y); });
svg.append("line")
.attr("x1", 0)
.attr("x2", width)
.attr("y1", height)
.attr("y2", height);
</script>
Full example histogram gist is:
https://gist.github.com/993912
Source: (StackOverflow)
I've created a site using the Zurb Foundation 3 grid. Each page has a large h1.
CSS
body {font-size:100%}
/* Headers */
h1 { font-size:6.2em;font-weight:500; }
HTML
<div class="row">
<div class="twelve columns text-center">
<h1> LARGE HEADER TAGLINE </h1>
</div><!-- End Tagline -->
</div><!-- End Row -->
When I resize the browser to mobile size the large font doesn't adjust and causes the browser to include a horizontal scroll to accomodate for the large text.
I've noticed that on the Zurb Foundation 3 Typography example page, the headers adapt to the browser as it is compressed and expanded.
Am I missing something really obvious? How do I achieve this?
Source: (StackOverflow)