现代浏览器 | IE浏览器
display: grid; | display: -ms-grid; //加前缀-ms
grid-template-columns: repeat(12, 1fr); | -ms-grid-columns: (1fr)[12]; //重复函数
grid-template-columns: 1fr repeat(3, 20px 1fr); | -ms-grid-columns: 1fr (20px 1fr)[3];
grid-template-columns:100px minmax(200px,500px) 1fr; | -ms-grid-columns:100px minmax(200px,500px) 1fr; //minmax函数
当值为auto时不起作用。minmax(50px,auto)
单元格占行：现代浏览器
grid-column:1/2;
grid-row:1/2;
单元格占行：IE浏览器
-ms-grid-column:1;
-ms-grid-column-span:1;
-ms-grid-row:1;
-ms-grid-row-span:1;
https://css-tricks.com/css-grid-in-ie-debunking-common-ie-grid-misconceptions/
