.panel-group{margin-bottom:20px}.panel-group .panel{margin-bottom:0;border-radius:4px;background-color:#fff;border:1px solid #ddd}.panel-group .panel-heading{color:#333;background-color:#f5f5f5;padding:10px 15px;border-bottom:1px solid #ddd;border-top-right-radius:3px;border-top-left-radius:3px}.panel-group .panel-title{margin-top:0;margin-bottom:0;font-size:16px;color:inherit}