.professionalIntroduction{height:60vh}.professionalIntroduction .header{height:70px;border-bottom:1px double #999;margin-bottom:10px}.professionalIntroduction .header h1{color:#555;line-height:40px;margin-bottom:5px}.professionalIntroduction .header span{font-size:14px;margin-right:50px}.professionalIntroduction .table-area{padding:0 100px}.area{width:var(--minWidth);margin:auto}