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Media Breakpoint Mixins

A Media Breakpoint Mixin can be used to define custom responsive behaviour dependent on the screen size.

The bootstrap media-breakpoint mixins take breakpoint names as parameters (e.g. xs, sm, md, lg, xl).

  • media-breakpoint-up(bp)

The css code is only included when the screen size is greater than the width of the breakpoint.

  • media-breakpoint-down(bp)

The css code is only included when the screen size is less than the width of the breakpoint.

  • media-breakpoint-between(sm, lg)

The css code is only included when the screen size is between the widths of the breakpoints.

@include media-breakpoint-up('lg'){
  margin-bottom: 0;
}

You can also define your own media queries and can learn more at SCSS mixins here. 

Steps

1

Create a new form with a Bootstrap4 Presentation Template

2

Within the style.scss define an SCSS class .responsive-panel

.responsive-panel{
  Height: 300px;
  Background-color: yellow;
  @include media-breakpoint-up(md){
    Background-color: blue;
  }
  @include media-breakpoint-between(lg,xl){
    Background-color:green;
  }
}
3

Create a panel on the form and give it the .responsive-panel

4

Run your form and observe the behaviour of the panel at different screen sizes by changing the size of the browser window.

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Responsive Bootstrap Variables
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Bootstrap Variables File
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Modifying Bootstrap Breakpoints
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Bootstrap Container Sizes
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Media Breakpoint Mixins

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HTML element properties
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On Click Event
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Hiding & Showing Controls using Client-Server API
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Transaction Manager
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Bootstrap Breakpoints
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