执行以下代码,如果想要 box1 盒子压着 box2 盒子,下列选项中,做法不可行的是()
<style>
    div {
       width: 200px;
       height: 200px;
        }
    .box1 {
       position: relative;
    }
    .box2 {
       position: relative;
       top: -100px;
    }
</style>
<div class="box1"></div>
<div class="box2"></div>
                                        
 
                     
                     
             
                            