Layout

Give your forms some structure—from inline to horizontal to custom grid implementations—with our form layout options.

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Utilities

Margin utilities are the easiest way to add some structure to forms. They provide basic grouping of labels, controls, optional form text, and form validation messaging. We recommend sticking to margin-bottom utilities, and using a single direction throughout the form for consistency.

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Form grid

More complex forms can be built using our grid classes. Use these for form layouts that require multiple columns, varied widths, and additional alignment options.

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Gutters

gutter modifer classes , you can have control over the gutter width in as well the inline as block direction.

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More complex layouts can also be created with the grid system.

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Horizontal form

Create horizontal forms with the grid by adding the Row class to form groups and using the col classes to specify the width of your labels and controls. Be sure to add ColFormLabel to your FormLabels as well so they're vertically centered with their associated form controls.

At times, you maybe need to use margin or padding utilities to create that perfect alignment you need. For example, we've removed the padding-top on our stacked radio inputs label to better align the text baseline.

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Horizontal form label sizing

Be sure to use size = "sm" or size = "lg" to your FormLabels or Legends to correctly follow the size of size = "lg" and size = "sm".

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Column sizing

As shown in the previous examples, our grid system allows you to place any number of Cols within a Row.

They'll split the available width equally between them. You may also pick a subset of your columns to take up more or less space, while the remaining Cols equally split the rest, with specific column classes like col="sm-7".

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Auto-sizing

The example below uses a flexbox utility to vertically center the contents and changes Colo col="auto" so that your columns only take up as much space as needed.

Put another way, the column sizes itself based on the contents.

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You can then remix that once again with size-specific column classes.

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Inline forms

Use the Row classes to create responsive horizontal layouts. By adding gutter modifier classes , we'll have gutters in horizontal and vertical directions. On narrow mobile viewports, the col=12 helps stack the form controls and more.

The align="item-center" aligns the form elements to the middle, making the FormCheckInput align properly.

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