body{/*鮫小紋の背景*/
background-size:10px 10px;
background-position:5px 2px, 5px 6px,0 -3px,-3px -1px,3px -1px,-2px 3px,2px 4px,0 0;
background-image:
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,transparent 0),
radial-gradient(#fff 1px,#347 0);
}