In this article we will learn about some of the frequently asked HTML programming questions in technical like “bootstrap grid class” Code Answer’s. When creating scripts and web applications, error handling is an important part. If your code lacks error checking code, your program may look very unprofessional and you may be open to security risks. Error or stack handling on html was simple and easy. An error message with filename, line number and a message describing the error is sent to the browser. This tutorial contains some of the most common error checking methods in HTML. Below are some solution about “bootstrap grid class” Code Answer’s.
bootstrap grid class
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col-12 col-sm-4 col-md-3 col-lg-12 col-xl-12
bootstrap Grid system
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The above example creates three equal-width columns on small, medium, large, and extra large devices using our predefined grid classes. Those columns are centered in the page with the parent .container.
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Breaking it down, here’s how it works:
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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.
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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.
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In a grid layout, content must be placed within columns and only columns may be immediate children of rows.
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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.
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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.
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Column widths are set in percentages, so they’re always fluid and sized relative to their parent element.
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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.
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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.
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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).
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You can use predefined grid classes (like .col-4) or Sass mixins for more semantic markup.
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<div class="container">
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<div class="row">
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<div class="col-sm">
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One of three columns
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</div>
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<div class="col-sm">
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One of three columns
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</div>
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<div class="col-sm">
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One of three columns
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</div>
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</div>
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</div>
boostrap grid
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<div class="row">
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<div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
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<div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
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<!-- Force next columns to break to new line at md breakpoint and up -->
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<div class="w-100 d-none d-md-block"></div>
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<div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
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<div class="col-6 col-sm-4">.col-6 .col-sm-4</div>
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</div>
