.businessInquiry .informationService{ width: 1200px; margin: 0 auto; margin-top: 20px; } .businessInquiry .informationService div { display: inline-block; } .businessInquiry .informationService div:nth-child(2) { margin-left: 20px; } .businessInquiry .informationService input { width: 300px; display: inline-block; } .businessInquiry .informationService button { display: inline-block; margin-left: 20px; }