如何重复创建网格模板区域

Question

我对网格有问题。我想创建这样的东西：

我希望此架构重复几次。但是我的代码不是flexie。

.grid {
  margin: 0 auto;
  display: grid;
  grid-template-columns: 32% 32% 32%;
  grid-column-gap: 20px;
  grid-row-gap: 20px;
  grid-template-areas: "a b c"
                        "d e f"
                        "g g g"
                        "h i j"
                        "k l m"
                        "o o o";
}

.item1 {
   grid-area: a;  
}

.item2 {
   grid-area: b;  
}

.item3 {
   grid-area: c;  
}

.item4 {
   grid-area: d;  
}

.item5 {
   grid-area: e;  
}

.item6 {
   grid-area: f;  
}

.item7 {
   grid-area: g;  
}

.item {
  background: red;
  border: 4px solid black;
  height: 20px;
  width: 100%;
}

<div class="grid">
  <div class="item item1"></div>
  <div class="item item2"></div>
  <div class="item item3"></div>
  <div class="item item4"></div>
  <div class="item item5"></div>
  <div class="item item6"></div>
  <div class="item item7"></div>
</div>

如何改善网格？我想重复该方案3 3 1.如果我有大约100个元素，则此解决方案将无法忍受

Answer 1

您可以简化如下。不需要grid-template-areas

.grid {
  margin: 0 auto;
  display: grid;
  grid-gap: 20px;
}

.grid > .item:nth-child(7n) {
  /* this will create 3 columns layout and force each 7th element to span all of them */
  grid-column:span 3; 
}

.item {
  background: red;
  border: 4px solid black;
  height: 20px;
}

<div class="grid">
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
</div>