On top of Normalize.css, turretcss applies some basic resets to ensure the correct rendering of elements. These resets include border-box for global box-sizing, max-width 100% for images, and removing top and bottom margins for first-child and last-child typography, form, and block element items.

Box Sizing

For more straightforward sizing in CSS, turretcss switches the global box-sizing value from content-box to border-box. This ensures padding does not affect the final computed width of an element, but it can cause problems with some third party software like Google Maps and Google Custom Search Engine.

Text Rendering

To improve type rendering for legibility text-rendering: optimizeLegibility; is set on the root <html> element. This allows browsers to emphasize legibility over rendering speed and geometric precision. This enables kerning and optional ligatures. MDN

Font Smoothing

turretcss sets --font-smoothing-antialiased on the <html> root tag for browsers that support font-smoothing, this can be overwritten with the --font-smoothing-auto mixin.


Images in turretcss are made responsive-friendly via the addition of max-width: 100%; and height: auto; to images so that it scales nicely to the parent element.

<img src="..." alt="...">

Min Height

body {
  width: 100%;
  min-height: 100%;

Margin Resets

turretcss resets vertical margins for nested HTML typography and form elements. This aims to make container element (<div>, <section>, etc.) margins more predictable, this affects the first and last children of nested heading elements (h1, h2, h3, h4, h5, h6), typography elements (hr, p, dl, dd, dt, ul li, ol li, blockquote, cite), and form elements (.field, fieldset, label, input, textarea, .select, and .control).

selectors {
  &:first-child {
    margin-top: 0;

  &:last-child {
    margin-bottom: 0;