Rounded
The "rounded" family really is part of be-bdr, however, to make class names as short as possible the "bdr" has been omitted. So instead of having be-bdr-rounded-top, the result has been be-rounded-top.
<button class="be-btn be-btn-ghost be-rounded-left be-hover-clouds"><<</button> <button class="be-btn be-btn-ghost be-rounded-right be-hover-clouds">>></button>
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.be-rounded .be-rounded-top .be-rounded-bottom .be-rounded-left .be-rounde-right .be-circle .be-bdr-pill
