I am seeking clarification on the distinction between two methods of writing HTML code:
CSS file (applies to both the first and second way):
.parent{
color:red;
font-style: italic;
}
.child_1{
color:blue;
}
.child_2{
color:green;
}
First approach:
<!DOCTYPE html>
<html lang="en">
<head>
This is the head.
</head>
<body>
<div class="parent">
<div class="child_1">
<p>division1</p>
</div>
<div class="child_2">
<p>division2</p>
</div>
</div>
</body>
</html>
Second method:
<!DOCTYPE html>
<html lang="en">
<head>
This is the head.
</head>
<body>
<div class="parent child_1">
<p>division1</p>
</div>
<div class="parent child_2">
<p>division2</p>
</div>
</body>
</html>
Both methods yield identical output:
https://i.sstatic.net/o4BJ9.png
I would appreciate an explanation on the significance of each approach and which one is generally preferred by developers.