.u-hide-sm

Hide on small screen size
.u-hide-md

Hide on medium screen size
.u-hide-lg

Hide on large screen size
.u-normal

Normal
.u-strong

Bold
.u-muted

Muted
.u-light

Light
.u-dark

Text
.u-extra-small

Extra small
.u-small

Small
.u-large

Large
.u-left

Left
.u-center

Center
.u-right

Right
.u-input

Input spacing
.u-primary

Primary
.u-danger

Danger
.u-error

Error
.u-warning

Warning
.u-success

Success
.u-title-primary

Primary title
.u-title-secondary

Secondary title
.u-textfield

Textfield spacing
.u-placeholder

Placeholder