The Bootstrap 4 container contains all the elements in a page. The container is the root of the Bootstrap 4 grid system and it is used to control the width of the layout. Bootstrap 4 ContainersĪ Bootstrap 4 container is an element with the class. We will take them one by one and explain them. The Bootstrap 4 grid consists of containers, rows and columns. Let’s get started! Photo credit to Animade for his shot. It is important you understand how to use the grid before learning about any other Bootstrap 4 component, because whatever element you use, you will need to place it somewhere on the screen. The Bootstrap 4 Grid System is used for responsive layouts.Ī responsive layout represents the way elements align in the page on different resolutions. Use these row columns classes to quickly create basic grid layouts or to control your card layouts and override when needed at the column level.By Elena-Cristina Conacel Learn the Bootstrap 4 Grid System in 10 Minutes An example with the Bootstrap 4 Grid System. row-cols-auto you can give the columns their natural width. col-md-4), the row columns classes are set on the parent. col-* classes apply to the individual columns (e.g. row-cols-* classes to quickly set the number of columns that best render your content and layout. Add any number of unit-less classes for each breakpoint you need and every column will be the same width. Equal-widthįor example, here are two grid layouts that apply to every device and viewport, from xs to xxl. Utilize breakpoint-specific column classes for easy column sizing without an explicit numbered class like. Here’s how the grid changes across these breakpoints: The six default grid tiers are as follow:Īs noted above, each of these breakpoints have their own container, unique class prefix, and modifiers. Grid optionsīootstrap’s grid system can adapt across all six default breakpoints, and any breakpoints you customize. We also include some CSS custom properties to consume these Sass variables for even greater flexibility for you.īe aware of the limitations and bugs around flexbox, like the inability to use some HTML elements as flex containers. If you don’t want to use the predefined grid classes in Bootstrap, you can use our grid’s source Sass to create your own with more semantic markup. Sass variables, maps, and mixins power the grid. g-* classes.g-0 is also available to remove gutters. Gutter classes are available across all breakpoints, with all the same sizes as our margin and padding spacing. Gutters are also responsive and customizable. widths are set in percentages so you always have the same relative sizing. Column classes indicate the number of template columns to span (e.g., col-4 spans four). There are 12 template columns available per row, allowing you to create different combinations of elements that span any number of columns. Rows also support modifier classes to uniformly apply column sizing and gutter classes to change the spacing of your content.Ĭolumns are incredibly flexible. This padding is then counteracted on the rows with negative margins to ensure the content in your columns is visually aligned down the left side. Each column has horizontal padding (called a gutter) for controlling the space between them. container-md) for a combination of fluid and pixel widths. container-fluid for width: 100% across all viewports and devices, or a responsive container (e.g. This means you can control container and column sizing and behavior by each breakpoint.Ĭontainers center and horizontally pad your content. col-sm-4 applies to sm, md, lg, xl, and xxl). Breakpoints are based on min-width media queries, meaning they affect that breakpoint and all those above it (e.g. Our grid supports six responsive breakpoints. How it worksīreaking it down, here’s how the grid system comes together: Those columns are centered in the page with the parent. The above example creates three equal-width columns across all devices and viewports using our predefined grid classes.
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