.tldr-box{background:#f7f7f8;border-left:4px solid #2fb5be;border-radius:5px;box-shadow:2px 2px 10px rgba(0,0,0,.1);font-size:16px;margin:20px 0;padding:15px}.tldr-box h3{color:#0f132e;margin-top:0}.tldr-content{font-size:16px;line-height:1.5}