<h3 class='tnt'>TNT</h3> .tnt { border-radius: 50%; border: 5px solid #000; height: 50px; line-height: 50px; text-align: center; width: 50px; }
<span class='counter'>37</span> .counter { background-color: #000; border-top-left-radius: 25px 10px; border-top-right-radius: 25px 10px; color: white; display: block; font-size: 1.7em; height: 50px; line-height: 50px; text-align: center; width: 50px; }