.diplay-{value}@{screen}
Values:
<div class="display-block padding-3">
.display-block
</div>
<div class="display-none padding-3">
.display-none
</div>
<div class="display-none display-block@medium padding-3">
.display-none@medium
</div>
<div class="display-none@large padding-3">
.display-none@large
</div>