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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.

Blood test

Blood test

Vaccination

Vaccination

Video consult

Video consult

Child check-up

Child check-up

Annual check-up

Annual check-up

Physio session

Physio session

4Cinematic hero banner

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

See a specialist this week

Thousands of patients already trust us, and we work hard to keep it that way.

5Map placeholder

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

Junoly Labs127 Riverside Drive, Valencia

6Custom 3:2 photo

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

Our favourite tips for busy weeks
3:2 · A simple monthly skin check

7Portrait team cards

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

Finn Novak

Finn Novak

QA Engineer

Chloe Lindqvist

Chloe Lindqvist

Product Designer

Hana Haddad

Hana Haddad

Art Director

8Vertical stories

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

Story by Mason OkaforMason
Story by Amara WhitakerAmara
Story by Mia IbrahimMia
Story by Leo BrennanLeo

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.

A parent's guide to childhood vaccinations
product

The small habits that make a big difference

Nov 7, 2025

11Caption over a gradient

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

SingaporeDental care

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
Dental cleaning
Dental cleaning$85.99
Annual check-up
Annual check-up$146.00
Child check-up
Child check-up$72.99

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.

9:05New

What our patients asked us most

5:43

Sleep tips our doctors actually use

6:28

Five things we learned this year

17Media list

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

  • A beginner's guide to getting started

    Jun 12, 2026 · 8 min read

  • How to choose the right service

    Mar 17, 2026 · 10 min read

  • Understanding your blood test results

    Oct 29, 2025 · 10 min read

18Responsive ratio

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

Modern healthcare close to home

19Round avatars

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

Maya Hughes
Maya
Ava Patel
Ava
Ruby Ortega
Ruby
Priya Sato
Priya

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.