Inflex.io

Inflex is a mobile-first, responsive design grid - built to utilise the power of the flex display property. Inflex supports all modern browsers.

Quick Start

• Download the latest release.
• Clone the repo: git clone https://github.com/chris-garner/inflex.git.
• Install with Bower: bower install inflex.

Configuration Variables:

@breakpoints: ~'xs' 0 20em, ~'sm' 20em 30em, ~'md' 30em 48em, ~'lg' 48em 64em, ~'xl' 64em 75em, ~'xxl' 75em 90em;

• @breakpoints (array) Responsive breakpoints (eg. ~'xs' 0 20em, ~'sm' 20em 30em)
  • selector (string) Breakpoint selector (eg. ~'xs')
  • min (em) Minimum breakpoint width (eg. 0)
  • max (em) Maximum breakpoint width (eg. 20em)

In Brief...

How it works:

• Inflex works around two core concepts - rows and columns. An inflex element can act as both a row and a column; this works great for nesting columns and producing flexible layouts that work great responsively.
• Rows are flex containers that group together columns; columns can be grouped both horizontally (default) and vertically. There should be no more than 12 columns within a row.
• Columns are flex items that contain your content. Columns should always be direct children of rows.
• Inflex does not use CSS classes; instead all options are declared through a custom data-inflex attribute, as a space separated list - removing any risk of framework conflicts.
• Inflex comes with a core set of options that make sizing, positioning and ordering a breeze; as well as some optional modules which help tackle concepts such as box-model spacing and element visibility.

Breakpoints:

• By default, Inflex provides six responsive breakpoints (xs, sm, md, lg, xl and xxl) which can be configured in inflex/config.less.
• These breakpoints exist so you can easily adapt layouts for different device sizes, without writing additional CSS.
• Adopting a mobile-first approach, breakpoints trigger based on their minimum width, meaning any breakpoint specific declarations apply to that one breakpoint and all those above it - unless of course, they're subsequently overridden.

Rows

• Rows are defined using: data-inflex="row".
• Rows can flow columns in a horizontal (dir:row) or vertical (dir:col) direction, as well as in reverse.
• By default, rows are set to wrap columns. This can be disabled with the option wrap:no.
• Rows have several options which allow you to control the alignment of columns, both vertically and horizontally. For example, jc:center will justify columns in the center, and ai:end with align columns at the end of a row.

Columns

• Columns are defined using: data-inflex="col".
• Columns can be completely fluid (%), like a traditional grid, or 'locked' to a relative width (em) based on N/12th's of a specified breakpoint. Without any declarations, a column will determine its width automatically - based on its inner contents.
• To lock a column to the full width of the md breakpoint you would use data-inflex="col @md:12". Note how the @ symbol is used to instruct the locking behaviour.
• Both locked and fluid columns can be overridden by breakpoint specific declarations. Remember, larger breakpoints automatically inherit declarations from smaller ones.
• Unlike other grids, Inflex does not create gutters between columns. It is recommended that margin and padding rules are handled on a case-by-case basis. Fortunately, inflex provides an optional module to assist with this: inflex/spacing.less.

An Example:

In this basic example we construct two full width columns, stacked one on top of each other. When the md breakpoint triggers, both columns become half width and sit side-by-side.

<div data-inflex="row">
    <div data-inflex="col 12 md:6"></div>
    <div data-inflex="col 12 md:6"></div>
</div>

In Detail...

Fluid Columns

• Fluid columns are percentage based, like most traditional grids.
• Fluid columns only wrap when you exceed 12 columns.
• Define how many columns a column should span [1-12], by adding a span value to the inflex attribute. For example, define a full width column using data-inflex="col 12".
• You can override the span value above a specific breakpoint, by prefixing [selector]:. For example [xs|sm|md|lg|xl|xxl]:[1-12]. Remember, all overrides are inherited by larger breakpoints.
• Note: It does not matter what order you specify options in your inflex attribute. Larger breakpoint declarations always override smaller ones.

<div data-inflex="row">
    <div data-inflex="col 12 md:6 lg:3"></div>
    <div data-inflex="col 12 md:6 lg:9"></div>
</div>

Growing Columns

• By adding grow to your inflex attribute, you can instruct any column to grow beyond it's specified width - filling any remaining space in the row. If more than one column contains the grow option, all available space will be evenly distributed.

Locked Columns

• Locked columns have a relative fixed width (em).
• Locked columns are based on N/12th's of a specified breakpoint - meaning there are 72 possible lock widths available: @[xs|sm|md|lg|xl|xxl]:[1-12]
• To lock a column you simply prefix your selector:span value with the @ symbol.

In this example, both columns start full width and stacked. When the lg breakpoint triggers, the first column locks to 4/12th's of the viewport width, whilst the second column occupies all remaining space.

<div data-inflex="row">
    <div data-inflex="col 12 @lg:4"></div>
    <div data-inflex="col 1 grow"></div>
</div>

Column Ordering

• All columns have a default flex order of 12, meaning if no order is set - columns will automatically align in the order they were specified.
• You can set specific column orders by adding #[1-12] to your inflex attribute.
• You can override the order value for a specific breakpoint, by prefixing [selector]#. For example [xs|sm|md|lg|xl|xxl]#[1-12].

In this example, the order of the three columns are reversed until the md breakpoint triggers.

<div data-inflex="row">
    <div data-inflex="col 4 #3 md#1">A</div>
    <div data-inflex="col 4 #2 md#2">B</div>
    <div data-inflex="col 4 #1 md#3">C</div>
</div>

TODO:

Spacing

Include inflex/spacing.less.

P[A|H|V|T|B|L|R][0|25|50|75|100|150|200|300]
M[A|H|V|T|B|L|R][0|25|50|75|100|150|200|300]

Example: data-inflex="col 12 PA150 MB75"

Visibility

Include inflex/visibility.less.

hide:[xs/sm/md/lg/xl/xxl]
hide:gt:[xs/sm/md/lg/xl/xxl]
hide:gte:[xs/sm/md/lg/xl/xxl]
hide:lt:[xs/sm/md/lg/xl/xxl]
hide:lte:[xs/sm/md/lg/xl/xxl]

Example: data-inflex="col 12 hide:lte:md"