.science-tab span{padding:15px;background:#f0f2f5;cursor:pointer;border-bottom:4px solid #f0f2f5;transition:all .4s;display:inline-block;margin:0}.science-tab span.active,.science-tab span:hover{background:#f47115;border-color:#fff;color:#fff}.science-content{background:#fff;padding:15px}.science-li{display:none;line-height:150%}.science-li.show{display:block}.btn button{padding:10px 15px;background:#f47115;color:#fff;border:0;cursor:pointer;border-radius:3px}.btn button:hover{background:#2c3e50}