Grid System 1

Grid System 1

• 1. Grid System Grid System Use our powerful mobile-first flexbox grid to build layouts of all shapes and sizes thanks to a twelve column system, five default responsive tiers, Sass variables and mixins, and dozens of predefined classes.
• 2. How It Works? How It Works? Bootstrap’s grid system uses a series of containers, rows, and columns to layout and align content. It’s built with flexbox and is fully responsive. Below is an example and an in-depth look at how the grid comes together.
• 3. Here’s How It Works? Here’s How It Works? •Containers provide a means to center and horizontally pad your site’s contents. Use .container for a responsive pixel width or .container-fluid for width: 100% across all viewport and device sizes. •Rows are wrappers for columns. Each column has horizontal padding (called a gutter) for controlling the space between them. This padding is then counteracted on the rows with negative margins. This way, all the content in your columns is visually aligned down the left side.
• 4. Here’s How It Works? Here’s How It Works? •In a grid layout, content must be placed within columns and only columns may be immediate children of rows. •Thanks to flexbox, grid columns without a specified width will automatically layout as equal width columns. For example, four instances of .col-sm will each automatically be 25% wide from the small breakpoint and up. See the auto-layout columns section for more examples.
• 5. Here’s How It Works? •Column classes indicate the number of columns you’d like to use out of the possible 12 per row. So, if you want three equal-width columns across, you can use .col-4. •Column widths are set in percentages, so they’re always fluid and sized relative to their parent element. •Columns have horizontal padding to create the gutters between individual columns, however, you can remove the margin from rows and padding from columns with .no- gutters on the .row. Here’s How It Works?
• 6. Slide6 •To make the grid responsive, there are five grid breakpoints, one for each responsive breakpoint: all breakpoints (extra small), small, medium, large, and extra large. •Grid breakpoints are based on minimum width media queries, meaning they apply to that one breakpoint and all those above it (e.g., .col-sm-4 applies to small, medium, large, and extra large devices, but not the first xs breakpoint). •You can use predefined grid classes (like .col-4) or Sass mixins for more semantic markup. Here’s How It Works?
• 7. Grid Options Grid Options While Bootstrap uses ems or rems for defining most sizes, pxs are used for grid breakpoints and container widths. This is because the viewport width is in pixels and does not change with the font size.
• 8. Auto Layout Columns Auto Layout Columns Utilize breakpoint-specific column classes for easy column sizing without an explicit numbered class like .col-sm-6.
• 9. Equal Width Equal Width For example, here are two grid layouts that apply to every device and viewport, from xs to xl. Add any number of unit-less classes for each breakpoint you need and every column will be the same width.
• 10. Equal Width Equal Width Equal-width columns can be broken into multiple lines, but there was a Safari flexbox bug that prevented this from working without an explicit flex-basis or border. There are workarounds for older browser versions, but they shouldn’t be necessary if you’re up-to-date.
• 11. Setting One Column Width Setting One Column Width Auto-layout for flexbox grid columns also means you can set the width of one column and have the sibling columns automatically resize around it. You may use predefined grid classes (as shown below), grid mixins, or inline widths. Note that the other columns will resize no matter the width of the center column.
• 12. Variable Width Content Variable Width Content Use col-{breakpoint}-auto classes to size columns based on the natural width of their content.
• 13. Equal Width Multi Row Equal Width Multi Row Create equal-width columns that span multiple rows by inserting a .w-100 where you want the columns to break to a new line. Make the breaks responsive by mixing the .w-100 with some responsive display utilities.
• 14. Responsive Classes Responsive Classes Bootstrap’s grid includes five tiers of predefined classes for building complex responsive layouts. Customize the size of your columns on extra small, small, medium, large, or extra large devices however you see fit.
• 15. All Breakpoints All Breakpoints For grids that are the same from the smallest of devices to the largest, use the .col and .col-* classes. Specify a numbered class when you need a particularly sized column; otherwise, feel free to stick to .col.
• 16. Mix And Match Mix And Match Don’t want your columns to simply stack in some grid tiers? Use a combination of different classes for each tier as needed.