最简单的方法是使用while函数创建div，该div显示您的帖子并向其中添加CSS类.

The easiest method of doing this is creating the divs from the while function that's showing your posts and adding CSS classes to them.

示例:

while ($post = mysqli_fetch_assoc($show_post)) {
echo '<div class="blue">';
echo $post["full_post"] . "<br />";
echo '</div>';
}