iotaCSS is now a monorepo and all individual repositories are part of it. Please open issues or PRs here: https://github.com/iotacss/iotacss.
The transform utility contains helper classes for the CSS text transform property.
npm install --save iotacss-utils-transform
$iota-utils-transform-namespace : '' !default;
$iota-utils-transform-capitalize-name : 'capitalize' !default;
$iota-utils-transform-uppercase-name : 'uppercase' !default;
$iota-utils-transform-lowercase-name : 'lowercase' !default;
$iota-utils-transform-res : false !default;
$iota-utils-transform-breakpoints : $iota-global-breakpoints !default;
.u-capitalize
.u-uppercase
.u-lowercase
// Responsive Class Syntax
.u-[name]@[breakpoint-name] // Example: .u-capitalize@sm