This text util helps you to fully control text aligns amog all responsive breakpoints.
bower install --save rowlow.type.text-align
$rowlow-text-align-namespace // Specific module namespace
/* Set modules namespace (optional) */
$rowlow-text-align-namespace: "namespace-";
@import "bower_components/rowlow.type.text-align/main.scss"
{rowlow-text-align-namespace}text-align--{breakpoint-name}--{left, right, center, justify}
<p class="text-align--s--center text-align--m--right"></p>