.robot-check-page { height: 400px; .captcha { width: 1150px; margin-left: auto; margin-right: auto; margin-top: 150px; } .title { font-size: 20px; text-align: center; } .captcha-wrap { width: 270px; margin-left: auto; margin-right: auto; position: relative; } .confirm { display: block; color: white; width: 270px; height: 50px; background: #ff1901; margin-left: auto; margin-right: auto; text-align: center; font-size: 20px; line-height: 50px; cursor: pointer; letter-spacing: 10px; } }