body {
   
}

 .login{
     padding-right: 15%;
   }
 .btnlogin{
     height:50px;
     width:50%;
     border-radius:10px;
     background-image:radial-gradient(ellipse farthest-corner at 0 140%, black 70%, white 70%);
     color: white;
 }
 .intro{
    margin-top: 10%;
     text-align:center;
     color:white;
 }
 #sec3{
     margin-top:10%;
     color:white;
 }
 
 .center h1{
  position: absolute;
  top: 25%;
  left: 40%;
  text-align:center;
  
  color:black;
}
 .products{
     background-color: black;
     width:1500px;
     margin-left:-9%;
     margin-right:-3%;
 }
 .btn1{
     background-color:black;
     color:white;
     border: 1px solid white;
     width:100px;
   }
 #add{
     height:500px;
     width:400px;
     text-align:center;
     border:1px solid black;
     margin-top:5%;
     margin-bottom:10%;
     margin-left: 35%;
 }
 .btn-add{
     width:200px;
     height:40px;
     border-radius:10px;
     color:white;
     background-image:radial-gradient(ellipse farthest-corner at 0 140%, black 80%, white 70%);
 }