<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<a class="header__menu-item" href="">aaaaaaa</a>
</body>
</html>.header__menu-item:hover + body {
background-color: rgba(0, 0, 0, 0.6);
}
