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Junoio Kit

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 --bs-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.

10-class pack

10-class pack

Coaching plan

Coaching plan

Nutrition guide

Nutrition guide

Mobility workshop

Mobility workshop

Yoga retreat

Yoga retreat

Day pass

Day pass

4Cinematic hero banner

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

Your fitness journey starts now

Community events keep you motivated, from fun runs to workshops.

5Map placeholder

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

Junoio Kit419 Station Street, Valencia

6Custom 3:2 photo

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

The small habits that make a big difference
3:2 · Our favourite tips for busy weeks

7Portrait team cards

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

Ethan Duarte

Ethan Duarte

Product Designer

Zoe Nguyen

Zoe Nguyen

Support Specialist

Aria Lindqvist

Aria Lindqvist

Product Designer

8Vertical stories

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

Story by Hana FischerHana
Story by Noah DelgadoNoah
Story by Isla AlvarezIsla
Story by Diego HaddadDiego

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.

Our most popular classes this month
case study

Five things we learned this year

Jun 5, 2026

11Caption over a gradient

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

SeoulOnline coaching

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
10-class pack
10-class pack$120.00
Massage
Massage$67.00
Day pass
Day pass$14.00

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.

7:23New

How our coaches plan a new class

9:38

How to stay motivated through winter

12:50

Looking back at a busy season

17Media list

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

  • A beginner's guide to strength training

    Oct 17, 2025 · 12 min read

  • Running your first 5K: an eight-week plan

    Mar 24, 2026 · 6 min read

  • Why recovery matters as much as training

    Nov 12, 2025 · 4 min read

18Responsive ratio

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

Classes that keep you coming back

19Round avatars

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

Ella Ibrahim
Ella
Elena Mensah
Elena
Mia Morgan
Mia
Priya Rossi
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.