CSS / Div容器边距问题

Question

我有一个容器div设置在页面顶部的固定位置，并且几个相对位置div可以在容器内滚动。我可以设置左，右和底边距。但是上边距被忽略并且在容器顶部向上运行。我在这里做错了什么？

#container {
position: fixed;
width: 32rem; 
height: 32rem;
background-color: #000000;
overflow: hidden;
}

#div1 {
position: relative;
width: 30em;
height: 40em;
margin: 5rem 1rem 5rem 1rem; 


<div id="container">
<div id="div1"></div>
</div>

Answer 1

您需要在overflow:hidden

中添加height:22em并更改#div1

我认为你想要这样的东西，我希望它能帮到你。

#container {
  position: fixed;
  width: 32rem; 
  height: 32rem;
  background-color: #000;
  overflow: hidden;
}


#div1 {
    height: 22em;
    margin: 5rem 1rem;
    overflow: hidden;
    position: relative;
    width: 30em;
    color:#fff;
}

<div id="container">
	<div id="div1">
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
  Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
  </div>
</div>

Answer 2

这是所需的输出吗？ http://jsfiddle.net/t9rkpspu/

#container {
  position: fixed;
  width: 32rem; 
  height: 32rem;
  background-color: #000000;
  overflow: hidden;
}

#div1 {
  color: white;
  position: relative;
  width: 30em;
  height: 40em;
  margin: 5rem 1rem 5rem 1rem; 
}