My problem is that I do "height div #grand_parent: min-content" but in execute height=0 .
#grand_parent{
position: relative;
width:100%;
min-height:min-content;
background-color:red;
}
#parent{
position: relative;
background-color: darkgoldenrod;
float: right;
width:70%;
min-height: min-content;
}
.filse{
display: inline-block;
position: relative;
width: 300px;
height:300px;
background-color: blueviolet;
margin: 10px 10px 10px 10px;
}<html>
<head>
<title>sifo</title>
<link rel="stylesheet" href="a.css" type="text/css"/>
</head>
<body id="body">
<div id="grand_parent">
<div id="parent">
<div class="filse">
a
</div>
</div>
</div>
</body>
</html>
