body{/*ソファー柄の背景(白)*/
background-size:100px 100px;
background-position:50px 50px,0 0,0 0,0 0;
background-color:#fff;
background-image:
radial-gradient(#fff 3px,#eee 5px,#ddd 8px,#eee 8px,rgba(255,255,255,0) 13px),
radial-gradient(#fff 3px,#eee 5px,#ddd 8px,#eee 8px,rgba(255,255,255,0) 13px),
linear-gradient(45deg,rgba(150,150,150,0.1),rgba(255,255,255,0) 10%,rgba(255,255,255,0) 50%,rgba(150,150,150,0.1) 50%,rgba(255,255,255,0) 60%),
linear-gradient(-45deg,rgba(150,150,150,0.1),rgba(255,255,255,0) 10%,rgba(255,255,255,0) 50%,rgba(150,150,150,0.1) 50%,rgba(255,255,255,0) 60%);
}