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MIGRATION_GUIDES.md

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Migration Guides

1.0.0+

Version 1.0.0 of Assembly introduces breaking changes – learn how to resolve them with this handy guide.

In addition to the changes outlined in this guide, 1.0.0 drops support for IE11. If you need to continue supporting IE11, we recommend staying on an older version of Assembly or migrating to another CSS framework.

Changes to viewport-{x}

These classes have been renamed to make room for new viewport width classes:

  • viewport-third → h-viewport-1/3
  • viewport-half → h-viewport-1/2
  • viewport-twothirds → h-viewport-2/3
  • viewport-almost → h-viewport-11/12
  • viewport-full → h-viewport-full

Changes to flex and flex-child

flex-child has been removed and flex-child--{x} modifiers are no longer modifiers:

  • flex-child no longer exists. In almost all cases, it only impacted rendering in IE11, so you may safely to remove all instances of this class.
  • flex-child--grow → flex-child-grow
  • flex-child--no-shrink → flex-child-no-shrink

flex-parent and all modifiers have been renamed:

  • flex-parent → flex
  • flex-parent-inline → inline-flex
  • flex-parent--column → flex--column
  • flex-parent--column-reverse → flex--column-reverse
  • flex-parent--row → flex--row
  • flex-parent--row-reverse → flex--row-reverse
  • flex-parent--center-main → flex--center-main
  • flex-parent--center-cross → flex--center-cross
  • flex-parent--start-main → flex--start-main
  • flex-parent--start-cross → flex--start-cross
  • flex-parent--end-main → flex--end-main
  • flex-parent--end-cross → flex--end-cross
  • flex-parent--wrap → flex--wrap
  • flex-parent--stretch-cross → flex--stretch-cross
  • flex-parent--space-between-main → flex--space-between-main

Changes to col

col no longer declares flex-basis:0 or flex-grow: 1;. As a result, elements that use the col class without a width class will no longer grow to fill available space. To reintroduce the previous behavior, add the col--auto modifier to elements that use col without a width class.

Changes to col--{x} modifiers

Generic percentage based width classes now take the place of col--{n} & col--off{'r' | 'l'}{n} modifier classes.

  • col--1 → w-1/12
  • col--2 → w-1/6
  • col--3 → w-1/4
  • col--4 → w-1/3
  • col--5 → w-5/12
  • col--6 → w-1/2
  • col--7 → w-7/12
  • col--8 → w-2/3
  • col--9 → w-3/4
  • col--10 → w-5/6
  • col--11 → w-11/12
  • col--12 → w-full
  • col--offr1 → mr-1/12
  • col--offr2 → mr-1/6
  • col--offr3 → mr-1/4
  • col--offr4 → mr-1/3
  • col--offr5 → mr-5/12
  • col--offr6 → mr-1/2
  • col--offr7 → mr-7/12
  • col--offr8 → mr-2/3
  • col--offr9 → mr-3/4
  • col--offr10 → mr-5/6
  • col--offr11 → mr-11/12
  • col--offl1 → ml-1/12
  • col--offl2 → ml-1/6
  • col--offl3 → ml-1/4
  • col--offl4 → ml-1/3
  • col--offl5 → ml-5/12
  • col--offl6 → ml-1/2
  • col--offl7 → ml-7/12
  • col--offl8 → ml-2/3
  • col--offl9 → ml-3/4
  • col--offl10 → ml-5/6
  • col--offl11 → ml-11/12

Changes to scroll-{*}

All scroll-{*} classes except scroll-styled have been renamed to to overflow-{*}.

  • scroll-always → overflow-scroll
  • scroll-auto → overflow-auto
  • scroll-hidden → overflow-hidden

Changes to loading

Previously, loading included margin:auto to center the loader horizontally by default. Add mx-auto to the loading element to reintroduce this behavior.

limiter removal

Before 1.0.0, Assembly had a complex limiter class that was convenient but inflexible. You can use these existing classes to exactly imitate limiter: wmax1200 w-11/12-mm w-5/6-ml mx-auto px24 px0-mm.

Icon removal

Every icon has been redrawn in 1.0.0 and some icons have been removed. If you use any of the following icons, seek an alternative source:

  • adjust-stroke
  • apple renamed to ios
  • facebook
  • instagram
  • js
  • lifebouy
  • linkedin
  • nofolder
  • qt
  • slack
  • tooltip
  • unity
  • wechat

Other removed classes

col--offl12 and col--offr12 no longer exist. Reintroduce them with:

.col--offl12 {
  margin-left: 100% !important;
}
.col--offr12 {
  margin-right: 100% !important;
}

txt-spacing4 no longer exists. Reintroduce it with:

.txt-spacing4 {
  letter-spacing: 0.4em !important;
}

btn--stroke--2 no longer exists. Reintroduce it with:

.btn--stroke--2 {
  box-shadow: inset 0 0 0 2px currentColor;
}

.btn.btn--stroke--2:disabled {
  box-shadow: inset 0 0 0 2px var(--inactive-text-color);
}

.btn--pill-stroke.btn--stroke--2.btn--pill-hc {
  margin-left: -2px;
  margin-right: 0;
}

.btn--pill-stroke.btn--stroke--2.btn--pill-hr {
  margin-left: -2px;
}

.btn--pill-stroke.btn--stroke--2.btn--pill-vc {
  margin-top: -2px;
  margin-bottom: 0;
}

.btn--pill-stroke.btn--stroke--2.btn--pill-vb {
  margin-top: -2px;
}

Changes to element sizes, colors, and default styles

  • The height of toggle is now 30px, down from 36px and the height of toggle-s is now 18px, down from 24px.
  • The default form control color is gray, originally blue, for all form types.
  • The typographic scale has been updated. Notably txt-m is now 16px, up from 15px and many headings have a smaller font-size.
  • Shadow classes now have a y-offset.
  • The default select is now borderless. To add a border, use select--stroke.