Camadas
.layer-0
.layer-1
.layer-2
.layer-3
.layer-4
Sombra
.shadow-none
Externa
.shadow-sm
.shadow-md
.shadow-lg
.shadow-xl
.shadow-sm-up
.shadow-md-up
.shadow-lg-up
.shadow-xl-up
.shadow-sm-right
.shadow-md-right
.shadow-lg-right
.shadow-xl-right
.shadow-sm-left
.shadow-md-left
.shadow-lg-left
.shadow-xl-left
Interna
.shadow-sm-inset
.shadow-md-inset
.shadow-lg-inset
.shadow-xl-inset
.shadow-sm-inset-up
.shadow-md-inset-up
.shadow-lg-inset-up
.shadow-xl-inset-up
.shadow-sm-inset-right
.shadow-md-inset-right
.shadow-lg-inset-right
.shadow-xl-inset-right
.shadow-sm-inset-left
.shadow-md-inset-left
.shadow-lg-inset-left
.shadow-xl-inset-left