To control the horizontal alignment of the trailing items, simply change the justify-content property under the. If there the last row is incomplete (for example you choose to show 5 cells per row and there are 7 items), the trailing items will be centered horizontally. ![]() Here's a grid system written with BEM syntax that allows for 1-10 columns to be displayed per row. The accepted answer is great, however this can be done with flexbox. But, it was also created without many of the modern CSS features and techniques we’re seeing in browsers like the new CSS Grid. We have now finished and we can take a look at the result here : LIVE FULLSCREEN RESULT Bootstrap’s default grid system represents the culmination of over a decade of CSS layout techniques, tried and tested by millions of people. Padding-bottom : 30% /* = width for a 1:1 aspect ratio */ Padding-bottom: 30% /* = width for a 1:1 aspect ratio */ Let's add some content to our 3x3 grid of squares : This will take the content out of the flow and keep the size of the square.ĭon't forget to add position:relative on the parent divs so the absolute children are positioned/sized relatively to their parent. ![]() Aspect ratio | padding-bottom | for 30% widthĪs you can't add content directly inside the squares (it would expand their height and squares wouldn't be squares anymore) you need to create child elements (for this example I am using divs) inside them with position: absolute and put the content inside them. With this technique, you can make any other aspect ratio, here is a table giving the values of bottom padding according to the aspect ratio and a 30% width. Here is a simple layout example of 3*3 squares grid using the code above. Padding-bottom: 30% /* = width for a square aspect ratio */ You can now Keep its aspect ratio according to its width. Side note: you can use top padding too or top/bottom margin but the background of the element won't display.Īs top padding is calculated according to the width of the parent element ( See MDN for reference), the height of the element will change according to its width. ![]() The trick for keeping elements square (or whatever other aspect ratio) is to use percent padding-bottom. Now let's see how to make these fancy responsive squares! I will explain how in a step by step process but first here are 2 demos of what you can achieve: You can make responsive grid of squares with vertically and horizontally centered content only with CSS. This still works but CSS has changed since it was written and ne properties can make the code simpler and easier to understand. This demo shows you can center multiple types of content :
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