类百度DOC编辑区域

.mainarea{

  position:absolute;

  top:151px;

  width:100%;

  bottom:0px;

}

.edit_wrap{

  background:#fcfcfc;

  padding:20px 18%;

  position:absolute;

  top:0px;

  right:0px;

  left:0px;

  bottom:0px;

  overflow-y: auto;

}

.edit_area{

  height:1110px;

  width:900px;

  margin:20px auto;

  padding:40px;

}
.mainarea
    .edit_wrap
        .edit_area

　　

转载于:https://www.cnblogs.com/znsongshu/p/6077266.html