Box{ position: relative; width: 240px; height: 40px; margin: 50px auto 0; } .pass-line{ margin:0 auto; width:100%; height:100%; } .line-Box{ float: left; width: 40px; height: 40px; } .line{ display: block; width: 25px; height:3px; margin:18px auto 0; background: #000; } .passInput{ position: absolute; width:240px; height:40px; left: 0; top: 0; } .inputCont{ float: left; width: 25px; height:40px; margin:0 7.5px; z-index: 2; font-size:30px; color:#333; line-height: 40px; text-align: center; background: none; }