I'm new to css and I need help with a problem. Why doesn't flex-grow expand the block__column_2 div to the end of the screen? According to curriculum theory, this should be expected behavior. Please tell me what am I doing wrong?
Code sample is shown below. Index.html style.css
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>flexbox</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="wrapper">
<div class="block">
<div class="block__row">
<div class="block__column block__column_1">
<div class="block__item">1</div>
</div>
<div class="block__column">
<div class="block__item block__column_2">2
<br>Более высокий блок
</div>
</div>
<div class="block__column block__column_3">
<div class="block__item">3</div>
</div>
</div>
</div>
</div>
</body>
</html>
.wrapper{
height: 100%;
overflow: hidden;
min-height: 100%;
padding: 50px;
}
body{
font-family: Arial, Helvetica, sans-serif;
}
.block__row{
border: 20px solid #ece89d;
margin: 0px 0px 20px 0px;
display: flex;
flex-direction: column;
height: 1024px;
align-items: stretch;
}
.block__column{
border: 20px solid #5e5373;
}
.block__column_1{}
.block__column_2{
flex-grow: 1;
flex-basis: auto;
}
.block__column_3{}
.block__item{
background-color: #18b5a4;
padding: 50px;
font-size: 50px;
color: #fff;
font-weight: 700;
text-align: center;
} 
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Remove block__column_2 class from div.block__item and add to div.black_column
and add display:flex for block__column The display: block attribute on the parent element prevents flex-grow from having any effect. Try setting the display: block property on the parent to display: flex. and add width:100%; to .block__item