This is all well and good, but it means that responsive sites are not going to work as expected. Non-responsive sites commonly look really bad when rendered in a narrow viewport, so mobile browsers usually render the site with a viewport width wider than the real device width by default (usually 960 pixels), and then shrink the rendered result so that it fits in the display. This is needed because by default, most mobile browsers lie about their viewport width. This is the viewport meta tag - it exists as a way control how mobile browsers render content.
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We'll use ems, as this will mean that if the user has increased their text size, the breakpoint will happen at a similar line-length but wider viewport, than someone with a smaller text size.Īdd the below code into the bottom of your step1.html CSS. This is where we'll add our first media query. If you want to follow on and implement this example as we go, make a local copy of step1.html on your computer.įrom this point, start to drag the Responsive Design Mode view wider until you can see that the line lengths are becoming quite long, and we have space for the navigation to display in a horizontal line. Open step 1 in the browser, or view the source. If we view the layout in Responsive Design Mode in DevTools we can see that it works pretty well as a straightforward mobile view of the site. This simple layout also works well on mobile. About Contact Meet the team Blog Veggies! You can easily make the viewport smaller and larger to see where the content would be improved by adding a media query and tweaking the design.Īctive learning: mobile first responsive design The Responsive Design Mode in Firefox DevTools is very useful for working out where these breakpoints should go. The points at which a media query is introduced are known as breakpoints. This approach means that it doesn't matter what the exact dimensions are of the device being used, every range is catered for. That's the point at which you want to use a media query to change the design to a better one for the space you have available.
Perhaps the line lengths become far too long, or a boxed out sidebar gets squashed and hard to read. This means that instead of targeting specific sizes for all designs, a better approach is to change the design at the size where the content starts to break in some way. There are now far too many devices, with a huge variety of sizes, to make that feasible. Lists of the sizes of the screens of popular phones and tablets were published in order that designs could be created to neatly match those viewports. In the early days of responsive design, many designers would attempt to target very specific screen sizes.
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