CSS margin全面了解(12)

        <div class="container">  

            <div class="box3">box3</div>  

            <div class="box4">box4</div>  

            <p>box3的margin-bottom为30px，box4的margin-top为-30px，两个margin一正一负，相加。</p>    

        </div>  

        <div class="container">  

            <div class="box5">box5</div>  

            <div class="box6">box6</div>  

（编辑：ASP站长网）