body{/*ハート柄(大)の背景*/
background-size:100px 100px;
background-color:#fff;
background-image:
linear-gradient(-135deg,mistyrose 12px,transparent 0),
radial-gradient(mistyrose 10px,transparent 0),
linear-gradient(135deg,mistyrose 12px,transparent 0),
radial-gradient(mistyrose 10px,transparent 0),
radial-gradient(mistyrose 8px,transparent 0),
/*ここまで薄いピンク(mistyrose)のハート↑↓ここから濃いピンク(pink)のハート*/
linear-gradient(-135deg,pink 12px,transparent 0),
radial-gradient(pink 10px,transparent 0),
linear-gradient(135deg,pink 12px,transparent 0),
radial-gradient(pink 10px,transparent 0),
radial-gradient(pink 8px,transparent 0);
background-position:
50px 50px,-10px -8px,50px 50px,10px -8px,0px 0px,
/*ここまで薄いピンク(mistyrose)のハート↑↓ここから濃いピンク(pink)のハート*/
0px 0px,40px 42px,0px 0px,60px 42px,50px 50px;
}