article{position:relative;}
      #output1, #output2, #output3  {
         background-color:black;
         color:white;
         font-size:10pt;
         position:relative;
         padding-bottom:10px;
         /*height:410px;*/ 
      } 
      #text_output_1, #text_output_2, #text_output_3,#text_output_4, #dropzone, #dropzone2, #dropzone3, #dropzone4 {
         position:relative;
         background-color:lightgray;
         color:blue;
         top:10px;
         font-size:12pt;
         padding:10px
       }
      #dropzone, #dropzone2 , #dropzone3, #dropzone4{
         background-color:yellow;
       }