css 网格线
白色网格线
background: #58a; background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 0), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 0), linear-gradient(white 1px, transparent 0), linear-gradient(90deg, white 1px, transparent 0); background-size: 15px 15px, 15px 15px, 75px 75px, 75px 75px;
黑色网格线
background-image: linear-gradient(90deg, rgba(50, 0, 0, 0.05) 3%, rgba(0, 0, 0, 0) 3%), linear-gradient(360deg,rgba(50, 0, 0, 0.05) 3%, rgba(0, 0, 0, 0) 3%); // background-size: 20px 20px; background-position: center center;