Bootstrap 2.x

Bootstrap 4.x

.badge

.badge.badge-pill

.btn

.btn .btn-default

.btn-large

.btn-lg

.btn-small

.btn-sm

.btn-mini

.btn-xs

.btn-default

.btn-secondary

.center-block

.mx-auto.d-block

.checkbox

.form-check

.span*

.col-md-*

.col-*-offset-*

.offset-*

.col-*-pull-*

.order-*-1

.col-*-push-*

.order-*-2

.container-fluid

.container

.control-label

.col-form-label

.dropdown-menu > li

.dropdown-item

.form-horizontal

(removed)

.help-block

.form-text

.hidden-desktop

.d-lg-none

.hidden-tablet

.d-md-none

.hidden-phone

.d-sm-none

.hidden-xs

.d-none

.icon-*

.glyphicon .glyphicon-*

.img-circle

.rounded-circle

.img-responsive

.img-fluid

.img-rounded

.rounded

.thumbnail

.img-thumbnail

.add-on

.input-group-addon

.input-append

.input-group

.input-prepend

.input-group

.input-lg

.form-control-lg

.input-sm

.form-control-sm

.item

.carousel-item

.hero-unit

.jumbotron

.label

.badge

.list-inline > li

.list-inline-item

.brand

.navbar-brand

.navbar .nav

.nav .navbar-nav

.nav navbar > li

.nav-item

.nav navbar > li > a

.nav-link

.nav-stacked

.flex-column

.btn-navbar

.nav-item

.navbar-fixed-top

.fixed-top

.navbar-right

.ml-auto

.pagination > li

.page-item

.pagination > li > a

.page-link

.panel

.card

.panel-body

.card-body

.panel-danger

.card.bg-danger.text-white

.panel-footer

.card-footer

.panel-heading

.card-header

.panel-info

.card.text-white.bg-info

.panel-primary

.card.bg-primary.text-white

.panel-success

.card.bg-success.text-white

.panel-title

.card-title

.panel-warning

.card.bg-warning

.pull-left

.float-left

.pull-right

.float-right

.offset*

.col-md-offset-*

.radio

.form-check

.row-fluid

.row

.table-condensed

.table-sm

.thumbnail

.card.card-body

.visible-desktop

.d-none.d-lg-block.d-xl-none

.visible-tablet

.d-none.d-md-block.d-lg-none

.visible-phone

.d-none.d-sm-block.d-md-none

.visible-xs

.d-block.d-sm-none

.well

.card.card-body