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Hackernoon logoHow to Code Sloped Section Edges? by@dvlden

How to Code Sloped Section Edges?

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@dvldenNenad Novaković

Sloped Edge — Featured Image

In the past, the only option to achieve this was using SVG images. Today, we can have multiple solutions and I’ll try my best to show you all possibilities.

Personally, I think that for simple sloped edges, we can use border property in CSS as the best solution, but for more complex shapes, we should still stick with SVG.

Since the time of this writing, you’ve probably come across many web applications that already have some creative design solutions for their sections. Angled/Sloped edges are nothing new, but we should investigate this further and try all possible solutions for this nifty feature…

A couple of possible solutions…

I wrote a couple of CodePen examples. They all look identical in the end, but there are some pros and cons as always, to each one. I’ll write about cons, but you decide about pros…

1. Solution using “border” property in CSS

CON: Depends upon viewport unit

Sloped Edge — Solution using “border” property in CSS

2. Solution using “transform” property in CSS, specifically “skewY” function

CON: Horizontal resize breaks it

Sloped Edge — Solution using “transform: skewY()” property in CSS

3. Solution using “clip-path” property in CSS, specifically “polygon” function

CONS:
- Vertical resize breaks it
- Bad browser coverage

Sloped Edge — Solution using “clip-path: polygon()” property in CSS

4. Solution using “SVG” image in HTML

CONS: 
- It makes your HTML messy
- Duplication of SVG images for various sections
- Creating new SVG images for different angles

Sloped Edge — Solution using “SVG” images in HTML

A couple of extras…

Using one of the solutions from above, but developed to be flexible for use across the entire application.

Solution using “Sass Mixin by Joseph Fusco

that embeds “SVG” in “background-image” property in CSS

If you like this approach, check his Angled Edges repository on GitHub for more information. This mixin supports a couple of different positions and you might want to check official example as well.

Personal Review:
This Mixin has unclear documentation in README file and lacks the source-maps in a demo. It shows CSS instead of SCSS, so people might have some trouble implementing this. Although, I just had issues figuring how to use $position and $hypotenuse arguments. By playing around with it, I figured out how to implement it to match other examples. It has some cons too, but I’ll let you try to figure them out in comments?
Sloped Edge — Solution using “Angled Edges” Sass Mixin, developed by Joseph Fusco

Solution using “Sass Mixin by Nenad Novaković (that’s me)”

using “border” property in CSS

My personal preference for Sloped Edges is by using “border” property. If you’re like me and prefer this approach, I highly suggest you to check out my Sloped Edge repository on GitHub for more information. There are a couple of possibilities with this mixin, as it supports a few different options. Not only that it works for right and left angles, it also has in and out option and it is not made only for vertical layouts, but horizontal layouts as well.

Make sure to check out both layout examples with all possible use cases:

Sloped Edge — Solution using “Sloped Edge” Sass Mixin, developed by Nenad Novaković

If you like either one of the extra solutions, please make sure to throw a 🌟 on GitHub as it means a lot to developers.

You might also find a solution with CSS property transform: rotate() elsewhere, but it requires an “overflow: hidden” property to its parent. I find that to be very bad and should not be even considered as a solution.

Until next time

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