Bootstrap 4 With Bootstrap 3 Code Styles

Published: Mar 30, 2018
Updated: May 3, 2021

I recently moved this site to Bootstrap 4. Some of my favorite things about v4: margin-top is avoided, margin-bottom uses rem instead of px, a native font stack is used, and base font-size is 16px (a good thing for mobile readers, and accessibility). I feel the typography in v4 is better spaced and the text can “breathe”.

However, I missed how Bootstrap 3 styled inline code and code blocks. I find v3 styling of those items easier to read.

Optimally you would want to edit the actual bootstrap css, but here is a quick-n-dirty way to use v3 styles. Just paste this in your custom css.

pre {
  display: block;
  padding: 9.5px;
  word-break: break-all;
  word-wrap: break-word;
  background-color: #f5f5f5;
  border: 1px solid #ccc;
  border-radius: 4px;

pre code {
  padding: 0;
  font-size: inherit;
  color: inherit; 
  white-space: pre-wrap;
  background-color: transparent;
  border-radius: 0;

code {
  padding: 2px 4px;
  color: #c7254e;
  background-color: #f9f2f4;
  border-radius: 4px;