![]() ![]() The classes above can be combined to create more dynamic and flexible layouts. Default for medium screensĬolumns for large screens (typical laptops): Classĭefines 1 of 12 columns (width:08.33%) for large screensĭefines 2 of 12 columns (width:16.66%) for large screensĭefines 3 of 12 columns (width:25.00%) for large screensĭefines 4 of 12 columns (width:33.33%) for large screensĭefines 12 of 12 columns (width:100%). Default for small screensĬolumns for medium screens (typical tablets): Classĭefines 1 of 12 columns (width:08.33%) for medium screensĭefines 2 of 12 columns (width:16.66%) for medium screensĭefines 3 of 12 columns (width:25.00%) for medium screensĭefines 4 of 12 columns (width:33.33%) for medium screensĭefines 12 of 12 columns (width:100%). ![]() W3-col has the following sub classes: Columns for small screens (typical smart phones): Classĭefines 1 of 12 columns (width:08.33%) for small screensĭefines 2 of 12 columns (width:16.66%) for small screensĭefines 3 of 12 columns (width:25.00%) for small screensĭefines 4 of 12 columns (width:33.33%) for small screensĭefines 12 of 12 columns (width:100%). Classĭefines a padding-less container for responsive columns.ĭefines a padded container for responsive columns. W3.CSS's grid system is responsive, and the columns will re-arrange automatically depending on the screen size: On a big screen it might look better with the content organized in three columns, but on a small screen it would be better if the content items were stacked on top of each other.Ĭolumns must reside inside a row to be fully responsive. On a medium screen, and 9 on a large screen. This article is excerpted from Unleashing the Power of CSS: Advanced Techniques for Responsive User Interfaces, available on SitePoint Premium.On a medium screen, and 3 on a large screen. Heydon Pickering’s and Andy Bell’s sidebar layout, which shows how to force varying Flexbox-based breakpoints for better control of when items wrap.Uses standard CSS only (No jQuery or JavaScript library). Easier to learn, and easier to use than other CSS frameworks. Heydon Pickering’s Flexbox Holy Albatross, which breaks down from columns into a single row based on the parent container’s total width. W3.CSS is a modern CSS framework with built-in responsiveness: Smaller and faster than other CSS frameworks.Here are two other Flexbox techniques that use flex-grow and flex-basis in interesting ways: Responsive Flexbox Grid layout – adjusted –min by SitePoint ( CodePen. Here’s a CodePen demo of this code in action. The other list children in this example will still flow around it and use the 30ch from the base rule, but the wider column effectively changes the behavior. ![]() Since we’re setting that value via the -min custom property, and Flexbox children control their own size, we can adjust it with an inline style. The flex-basis property can be further adjusted for this solution to assign unique “breakpoints” for different items. Responsive Flexbox Grid layout by SitePoint ( CodePen. The following CodePen demo shows our Flexbox layout in action. (Experiment with the CodePen demo below.) It’s important to keep flex-shrink to 1, so that, eventually - when the available inline space is narrower than the flex-basis - the items are still allowed to “shrink”, as this helps to prevent overflow. The flex shorthand sets, in order, flex-grow, flex-shrink, and flex-basis.Īs an experiment, we can change the flex-grow value to 0 and see how the items will only expand up to the flex-basis value. For Flexbox, we set the child layout behavior on the children. Keen readers may have noticed another key difference between these solutions: when using Grid, the parent defines the child behavior. Note: in both the Grid and Flexbox solutions, if we add a gap, that space will be subtracted from the calculation of how many columns may be created before new rows are added. The image below shows the final, odd-numbered list item spanning two columns, thanks to the flex-grow property. It therefore has a similar behavior to 1fr in most cases. If we have three items and the third needs to move to a new row, it will take up the remaining space due to the flex shorthand, which importantly sets flex-grow to 1. In this code, as in the Grid code, the browser will create as many columns as will fit the inline space with at least the -min size of 30ch. ![]() With Flexbox, we can direct the flex items to grow to fill all remaining extra space, preventing an “orphan” that appears with the Grid solution. The difference between the Flexbox and Grid solution is that grid items that flow to a new row can’t expand across multiple grid columns. We can accomplish a similar experience with Flexbox. ![]()
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