CSS Grid not working in ie11 despite prefixes

fig*_*r20 1 html css css-grid

I have the following simple layout example using CSS grid

.container {
	width: 100%;
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr auto 1fr;
    grid-template-columns: 1fr auto 1fr;
}

.item1 {
	text-align:center;
    background:red;
	color:white;
	padding:20px
}

.item2 {
	text-align:center;
	background:green;
	color:white;
	padding:20px
}

.item3 {
	text-align:center;
	background:blue;
	color:white;
	padding:20px
}
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<div class="container">

	<div class="item1">
		Item 1 
	</div>

	<div class="item2">
		Item 2
	</div>

	<div class="item3">
		Item 3
	</div>

</div>
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I have prefixed with ie specific prefixes but the grid is not working correctly in ie11. Am I missing a prefix?

Anyone any ideas why?

con*_*exo 6

IE没有自动流动的网格元素。您需要为每个网格元素分配一个特定的网格位置,否则每个未放置的元素最终将堆叠为1,1。

.container {
  width: 100%;
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr auto 1fr;
  grid-template-columns: 1fr auto 1fr;
}

.item1 {
  text-align: center;
  background: red;
  color: white;
  padding: 20px;
  -ms-grid-column: 1;
}

.item2 {
  text-align: center;
  background: green;
  color: white;
  padding: 20px;
  -ms-grid-column: 2;
}

.item3 {
  text-align: center;
  background: blue;
  color: white;
  padding: 20px;
  -ms-grid-column: 3;
}
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<div class="container">

  <div class="item1">
    Item 1
  </div>

  <div class="item2">
    Item 2
  </div>

  <div class="item3">
    Item 3
  </div>

</div>
Run Code Online (Sandbox Code Playgroud)