mixin feature-cards horizontal-wrap justify-content center width 100% max-width 1200px margin content-padding auto mixin feature-card vertical flex-basis 240px border-radius 5px overflow hidden background ui-background box-shadow shadow-light border 1px solid ui-border-color margin 1.2rem default-transition :hover box-shadow shadow-medium mixin feature-card-component horizontal justify-content center align-items center text-align center padding 1rem margin 0 mixin feature-card-footer font-size 0.9rem opacity 0.5 margin-top 0