&quot;true&quot;&gt;&lt;/div&gt;</pre>
          </div>
        </div>
        <div class="block">
          <h2>CSS</h2>
          <div class="box code">
            <pre>
@keyframes scale {
    to {
        transform: scale(1.02)
    }
}

.speaker,.speaker::after,.speaker::before {
    border-radius: 50%;
    position: absolute;
    display: block
}

.speaker {
    height: 128px;
    width: 128px;
    top: 50%;
    left: 50%;
    margin-left: -64px;
    margin-top: -64px;
    box-shadow: 0 0 0 4px #333;
 