.content-wrap{ position: relative; background: center top no-repeat, center bottom no-repeat; background-size:1231px auto; } .line-wrap{ position: absolute;center;top:127px;bottom:75px;z-index:-1; width:100%; background: center top repeat-y; background-size:1231px auto; } .content-wrap-lb{ position: relative; background: center top no-repeat, center bottom no-repeat; background-size:1296px auto; } .line-wrap-lb{ position: absolute;center;top:110px;bottom:75px;z-index:-1; width:100%; background: center top repeat-y; background-size:1296px auto; }