Framework class quick reference

Use this reference when you need to translate a layout pattern or component from one framework to another, or when working on a project and you can’t remember a specific class name.

Grid

ConceptFoundation 6Bootstrap 4Materialize
Outer wrappergrid-xcontainercontainer
Row / containergrid-xrowrow
Full widthcell small-12col-12col s12
Half width (medium)cell medium-6col-md-6col m6
One-third (large)cell large-4col-lg-4col l4
One-quarter (large)cell large-3col-lg-3col l3
Column offsetmedium-offset-3offset-md-3offset-m3
Remove guttersgrid-x (margin grid)no-gutters on rowN/A (manual)
Auto-width cellcell autocolN/A

Buttons

StyleFoundation 6Bootstrap 4Materialize
Default.button.btn .btn-secondary.btn
Primary.button (or add custom).btn .btn-primary.btn .blue
Success / positive.button .success.btn .btn-success.btn .green
Warning.button .warning.btn .btn-warning.btn .orange
Danger / destructive.button .alert.btn .btn-danger.btn .red
Outline style.button .hollow.btn .btn-outline-primary.btn-outlined
Large.button .large.btn .btn-lg.btn-large
Small.button .small.btn .btn-sm.btn-small
Full width.button .expanded.btn .btn-block.btn + width:100%
Disabled.button.disabled or disabled attr.btn.disabled or disabled attr.disabled

Alerts and callouts

StyleFoundation 6Bootstrap 4Materialize
Info.callout.alert .alert-info.card .blue.lighten-4
Success.callout .success.alert .alert-success.card .green.lighten-4
Warning.callout .warning.alert .alert-warning.card .orange.lighten-4
Danger / Error.callout .alert.alert .alert-danger.card .red.lighten-4
ConceptFoundation 6Bootstrap 4Materialize
Nav wrapper.top-bar.navbar<nav> with .nav-wrapper
Nav list.menu.navbar-nav<ul> inside .nav-wrapper
Nav item.menu-item.nav-item<li>
Nav link<a> in .menu-item.nav-link<a> in <li>
Brand / logo.top-bar-left.navbar-brand.brand-logo
Mobile toggleBuilt-in with .title-bar.navbar-togglerSidenav trigger button
Active itemN/A (add custom class).active.active

Typography

ConceptFoundation 6Bootstrap 4Materialize
Display headingNo class needed — semantic <h1><h6>.display-1 through .display-4Semantic headings only
Lead paragraph.lead.lead.flow-text
Small text.text-small or <small><small> or .small<small>
Muted textN/A (add custom).text-muted.grey-text
Text left/center/right.text-left / .text-center / .text-right.text-left / .text-center / .text-right.left-align / .center-align / .right-align

Visibility utilities

ConceptFoundation 6Bootstrap 4Materialize
Hide on mobile.hide-for-small-only.d-none .d-md-block.hide-on-small-only
Show only on mobile.show-for-small-only.d-block .d-md-none.show-on-small
Screen reader only.show-for-sr.sr-only.sr-only (custom or Bootstrap)