CSS Grid: Reduce Repetition Using the repeat Function

 When we used grid-template-columns and grid-template-rows to define the structure of a grid, you entered a value for each row or column you created.

Lets say you want a grid with 100 rows of the same height. It isn't very practical to insert 100 values individually. Fortunately, there's a better way - by using the repeat function to specify the number of times you want your column or row to be repeated, followed by a comma and the value you want to repeat.


Here's an example that would create the 100 row grid, each row at 50px tall.

grid-template-rows: repeat(100, 50px);

You can also repeat multiple values with the repeat function, and insert the function amongst other values when defining a grid structure. Here's what I mean:

grid-template-columns: repeat(2, 1fr 50px) 20px;
 this will be translated to :
   
       grid-template-columns:1fr 50px 1fr 50px  20px; 

1fr 50px is repeated twice followed by 20px.


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<style>
  .item1{background:LightSkyBlue;}
  .item2{background:LightSalmon;}
  .item3{background:PaleTurquoise;}
  .item4{background:LightPink;}
  .item5{background:PaleGreen;}
  
  .container {
    font-size: 40px;
    min-height: 300px;
    width: 100%;
    background: LightGray;
    display: grid;
    grid-template-columns: repeat(3 ,1fr );
    grid-template-rows: repeat(3 ,1fr );
    grid-gap: 10px;
  }
</style>
  
<div class="container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>
  <div class="item4">4</div>
  <div class="item5">5</div>
</div>

original code 
<style>
  .item1{background:LightSkyBlue;}
  .item2{background:LightSalmon;}
  .item3{background:PaleTurquoise;}
  .item4{background:LightPink;}
  .item5{background:PaleGreen;}
  
  .container {
    font-size: 40px;
    min-height: 300px;
    width: 100%;
    background: LightGray;
    display: grid;
    
    grid-template-columns:1fr 1fr 1fr;
    grid-template-rows:1fr 1fr 1fr;
    grid-gap: 10px;
  }
</style>
  
<div class="container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>
  <div class="item4">4</div>
  <div class="item5">5</div>
</div>
same output
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source

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