body{background:#f4ede0;margin:0}*{box-sizing:border-box}.chat-teaser:after{content:"";border-top:7px solid #0000;border-bottom:7px solid #0000;border-left:7px solid #faf6ec;width:0;height:0;position:absolute;top:50%;right:-7px;transform:translateY(-50%)}@media (width<=640px){.chat-teaser{display:none}}