.box{background-color:#fff;border:1px solid #333;border-radius:15px;font-family:Arial,sans-serif;margin:auto auto 30px;max-width:600px;padding:50px}.clickable{color:#000;cursor:pointer;margin:5px 0}.more-text{max-height:0;opacity:1;overflow:hidden;transition:max-height .5s ease,opacity .3s ease}.more-text.open{max-height:1000px;opacity:1}.arrow{float:right;transition:transform .3s ease}.clickable.open .arrow{transform:rotate(180deg)}h6{font-size:1.7rem}