代码示例：（标识：cssref_anim_grid-auto-flow）
<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
display: grid;
grid-template-columns: auto auto auto;
grid-template-rows: auto auto;
grid-auto-flow: row;
grid-gap: 10px;
background-color: #2196F3;
padding: 10px;
animation: mymove 5s infinite;
}
.grid-container > div {
background-color: rgba(255, 255, 255, 0.8);
text-align: center;
padding: 20px 0;
font-size: 30px;
}
@keyframes mymove {
50% {grid-auto-flow: column;}
}
</style>
</head>
<body>
<h1>grid-auto-flow 的动画效果：</h1>
<p>该动画将 grid-auto-flow 从行改为列。</p>
<div class="grid-container">
<div class="item1">1</div>
<div class="item2">2</div>
<div class="item3">3</div>
<div class="item4">4</div>
</div>
</body>
</html>
