html,body
  {
  margin:0;
  padding:0;
  }
  
#bgimage
  {
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:99%;
  }
  
#content
  {
  position:absolute;
  top:0;
  width:95%;
  z-index:1;
  }
  
.CurvedBox
  {
  padding:10px;
  border-radius:20px 20px 20px 20px;
  background-color:rgba(20,20,20,0.8);
  }
  

.CurvedBox2
  {
  padding:10px;
  border-radius:20px 20px 20px 20px;
  background-color:rgba(20,20,20,0.8);
  -moz-column-count:2;
  -webkit-column-count:2;
  column-count:2;
  }

.CurvedBox3
  {
  padding:10px;
  border-radius:20px 20px 20px 20px;
  background-color:rgba(20,20,20,0.8);
  -moz-column-count:3;
  -webkit-column-count:3;
  column-count:3;
  }

.CurvedBox4
  {
  padding:10px;
  border-radius:20px 20px 20px 20px;
  background-color:rgba(20,20,20,0.8);
  -moz-column-count:4;
  -webkit-column-count:4;
  column-count:4;
  }