Why isn't my CSS Grid rendering properly in IE 11? - css

Question

I have this simple grid:
body { margin: 0; }
.grid {
-ms-grid-columns: 200px auto;
-ms-grid-rows: 54px 53px auto;
display: grid;
height: 100vh;
grid-template-areas:
"header header"
"navbar navbar"
"sidebar content";
grid-template-columns: 200px auto;
grid-template-rows: 54px 53px auto;
}
.header {
grid-area: header;
-ms-grid-column: 1;
-ms-grid-row: 1;
-ms-grid-column-span: 2;
background-color: orange;
}
.navbar {
grid-area: navbar;
-ms-grid-column: 1;
-ms-grid-row: 2;
-ms-grid-column-span: 2;
background-color: lightgreen;
}
.sidebar {
grid-area: sidebar;
-ms-grid-column: 1;
-ms-grid-row: 3;
background-color: #eee;
}
.content {
grid-area: content;
-ms-grid-column: 2;
-ms-grid-row: 3;
background-color: yellow;
}
<div class="grid">
<div class="header">header</div>
<div class="navbar">navbar</div>
<div class="sidebar">sidebar</div>
<div class="content">content</div>
</div>
I have tried to add the old Microsoft-specific CSS -ms-grid-prefixed grid properties accordingly so it is supposed to work in IE 11 as well. What I get instead is this:
Here's the IE11-debug codepen: https://s.codepen.io/connexo/debug/BaBLpbx/yYryLJBqwdPM
Here's the full codepen for other browsers: https://codepen.io/connexo/pen/BaBLpbx
Does anyone see what I'm missing to make this simple grid work in IE 11?

Answer 1

Okay, I was able to solve the problem.
display: -ms-grid; was missing on the grid-container. Props go to #Michael_B for spotting this crucial mistake.
By the looks of it auto for column/row-definitions seems to be unsupported/interpreted differently on IE 11. I simply replaced it with 1fr.
body { margin: 0; }
.grid {
-ms-grid-columns: 200px 1fr;
-ms-grid-rows: 54px 53px 1fr;
display: grid;
display: -ms-grid;
height: 100vh;
grid-template-areas:
"header header"
"navbar navbar"
"sidebar content";
grid-template-columns: 200px auto;
grid-template-rows: 54px 53px auto;
}
.header {
grid-area: header;
-ms-grid-column: 1;
-ms-grid-row: 1;
-ms-grid-column-span: 2;
background-color: orange;
}
.navbar {
grid-area: navbar;
-ms-grid-column: 1;
-ms-grid-row: 2;
-ms-grid-column-span: 2;
background-color: lightgreen;
}
.sidebar {
grid-area: sidebar;
-ms-grid-column: 1;
-ms-grid-row: 3;
background-color: #eee;
}
.content {
grid-area: content;
-ms-grid-column: 2;
-ms-grid-row: 3;
background-color: yellow;
}
<div class="grid">
<div class="header">header</div>
<div class="navbar">navbar</div>
<div class="sidebar">sidebar</div>
<div class="content">content</div>
</div>

Answer 2

Your IE is probably using a lower version to render your page you can check it in IE Dev Tools.
To solve it try adding this meta tag in your HTML page
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">