.grid4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; } 

.grid5 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr 1fr ; } 
.grid1 { display: grid; grid-template-columns: 1fr ; }
 .grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr ;}
  .grid2 { display: grid; grid-template-columns: 1fr 1fr  ;}