css

1、background-img与background-size实现背景网格

background-img:linear-gradient(90deg, rgba(200, 0, 0, 0.15) 10%, rgba(0, 0, 0, 0) 10%), linear-gradient(rgba(200, 0, 0, 0.15) 10%, rgba(0, 0, 0, 0) 10%)

background-size:10px 10px;