/*****/
 
 body {
     font-family: Arial, Helvetica, Geneva, SunSans-Regular, sans-serif;
     font-weight: normal;
     
     margin : 0px 30px 0px 30px ;
 }
 .plot{ 
     background-color: #DfffCf;
     position:relative;
     height:300px;
     width:768px;
     margin-left:auto;
     margin-right:auto;
     margin-bottom:20px;
 }
 
 h4 {
     text-align:center; 
     font-size:30px;
 }
 
 input {
     font-size:1em;
     margin-right: 8px;  
 }