<!DOCTYPEhtml>
<htmllang="ru">
<head>
<meta
charset="UTF-8">
<title>Докумени</
title>
<style>
div.post{
padding:10px;
margin:1px;
border:1px
solid#F1F1F1;
}
div.post:nth-
child(even){
background:
#F1F1F1;
border:1px
solid#FFF;
}
</style>
</head>
<body>
<div
class="post">Строка
1</div>
<div
class="post">Строка
2</div>
<div
class="post">Строка
3</div>
<div
class="post">Строка
4</div>
</body>
</head>
</html>