Font Weight

The font-weight property sets how thick or thin characters in text should be displayed.

Class	Properties
`weight-100`	`font-weight: 100`
`weight-200`	`font-weight: 200`
`weight-300`	`font-weight: 300`
`weight-400`	`font-weight: 400`
`weight-500`	`font-weight: 500`
`weight-600`	`font-weight: 600`
`weight-700`	`font-weight: 700`
`weight-800`	`font-weight: 800`
`weight-900`	`font-weight: 900`
`weight-normal`	`font-weight: normal`
`weight-bold`	`font-weight: bold`
`weight-bolder`	`font-weight: bolder`
`weight-lighter`	`font-weight: lighter`

'font-weight': (
    'enabled'    : true, // true or false
    'property'   : 'font-weight', // css property name (don't change it !)
    'prefix'     : 'weight-', // prefix of class name
    'specificity': !important, // or null
    'unit'       : null, // length/angle units (px, rem, em, %, vh, vw etc)
    'args'       : null, // for extra variables
    'variables'  : (100,200,300,400,500,600,700,800,900,normal,bold,bolder,lighter)
)