Skip to content

Ratio

The ratio helper keeps a box at a fixed aspect ratio whatever its width, which is perfect for media placeholders, thumbnails, galleries and banners. Pick ratio-1x1, ratio-4x3, ratio-16x9 or ratio-21x9, or set any ratio with the --ui-aspect-ratio variable.

1The four built-in ratios

ratio-1x1, ratio-4x3, ratio-16x9 and ratio-21x9 next to each other, filled with a plain div.

1:1
4:3
16:9
21:9

2Video placeholder

A 16:9 poster image with a centred play button, ready for a video player of your choice.

Video poster

3Square product thumbnails

ratio-1x1 with object-fit-cover gives every product the same tile, whatever the photo size.

Face oil

Face oil

Ceramic mug

Ceramic mug

Leather wallet

Leather wallet

Running cap

Running cap

Canvas tote

Canvas tote

Glass bottle

Glass bottle

4Cinematic hero banner

ratio-21x9 for a wide banner with a headline overlay.

The new collection has landed

We listen first, then build a plan around what you actually need.

5Map placeholder

A 4:3 box reserved for a map, showing the address until the map loads.

Coraeon194 Cedar Lane, Seoul

6Custom 3:2 photo

Any ratio works with the --ui-aspect-ratio variable: 2 / 3 = 66.67% for classic photo prints.

The small habits that make a big difference
3:2 · A three-step skincare routine that works

7Portrait team cards

A 3:4 portrait ratio (133.33%) for team photos in cards.

Maya Quinn

Maya Quinn

Customer Success

Aria Nguyen

Aria Nguyen

Frontend Engineer

Ethan Tanaka

Ethan Tanaka

Frontend Engineer

8Vertical stories

A 9:16 ratio (177.78%) for phone sized stories or short clips in a scrolling row.

Story by Freya BrennanFreya
Story by Sofia SilvaSofia
Story by Jonah FischerJonah
Story by Hana AshfordHana

9Chart area

A 16:9 box that keeps a simple bar chart in proportion on every screen.

Monthly bookings

10Blog card cover

ratio-16x9 as a card image keeps every post card in a grid the same height.

How to choose the right product
guide

A small guide to a calmer home

Mar 8, 2026

11Caption over a gradient

A 4:3 image with a gradient overlay so white caption text stays readable.

AucklandGift wrapping

12Mixed ratio gallery

Combining 1:1, 4:3 and 16:9 tiles in one responsive grid.

Gallery photo 1
Gallery photo 2
Gallery photo 3
Gallery photo 4

13Thumbnails in table cells

A small ratio-1x1 box keeps order line images square inside a table.

ImageItemPrice
Face oil
Face oil$35.00
Ceramic mug
Ceramic mug$24.00
Glass bottle
Glass bottle$23.00

14Empty cover placeholder

A dashed 4:3 area that reserves space for an image that has not been chosen yet.

No cover image yet

15Colour swatches

Empty square ratios make perfect colour swatches for a style guide.

primary

primary

secondary

secondary

success

success

info

info

warning

warning

danger

danger

16Video thumbnails with badges

Duration and status badges positioned over 16:9 thumbnails.

7:59New

Styling one piece three different ways

4:28

Meet the makers behind our ceramics

13:34

Inside our new autumn collection

17Media list

Fixed width 4:3 thumbnails beside article titles in a reading list.

  • Looking back at a busy season

    Dec 19, 2025 · 8 min read

  • What to pack for a rainy weekend outdoors

    Mar 26, 2026 · 9 min read

  • Five things we learned this year

    Feb 12, 2026 · 4 min read

18Responsive ratio

A small custom class changes --ui-aspect-ratio per breakpoint: square on phones, 21:9 on tablets and up.

Good things, made to be used

19Round avatars

ratio-1x1 with rounded-circle keeps profile pictures perfectly round even when the source is not square.

Ella Haddad
Ella
Owen Okafor
Owen
Mateo Duarte
Mateo
Lucas Ibrahim
Lucas

20Loading skeleton

A 16:9 placeholder block with placeholder-glow while the real image and text load.

The skeleton reserves the exact space, so the page does not jump when content arrives.