#image7 { 
  border:1px solid black;
  border-radius:30px;
  margin-top:100px;
 } 
 .intro{ 
  color:green; 
 }
.head{
  margin-left: 35%;
}

 h1 {  
 background-image:linear-gradient(#5875ee,#2b3db5);
  text-align:center;
    color:yellow;
  font-size:60px;
  font-family: Gill Sans, sans-serif;
  border-radius:10px;
  padding:30px; 
 } 
 h2 { 
  text-align:center; 
     color:purple; 
  font-size:40px; 
  font-style:verdana; 
 } 
 .question { 
  border-style:solid;
  border:1 1 1 1;
  border-radius:10px;
  margin-top:5px;
  margin-right: 20%;
  margin-bottom:5px;
  margin-left:20%;
  padding-left:10px;
  padding-bottom:5px;
  }
  
 h3 { 
  margin-left:10px; 
 } 

 *{
  box-sizing: border-box;
  margin: 0;
  padding:0; 
  
}
  

  

  
 .logo img{ 
  position: absolute;
  margin-top: 5px;
  margin-left: 10px;
  border-radius: 50px;
 } 
 #submit { 
  background:purple;
  border:none;
  border-radius:5px;
    padding:10px;
  color:white;
  font-size:16px;
  transition-duration:.5s;
  margin-top:15px;
  margin-left:50%;
 } 
 #submit:hover { 
  background:white; 
  border:1px solid green; 
  color:black; 
  cursor:pointer; 
   
 } 
 #quiz { 
margin-left:10px;
  background:#d2def2;
  padding:10px 20px 10px 20px;
  width:700;
  border-radius:20px;
 } 
 #after_submit { 
visibility:hidden;
  background:#ff5459;
  padding:10px 20px 10px 20px;
  width:500px;
  height:500px;
  border-radius:20px;
  float:left;margin-top: 10px;
  margin-left: 40%;
     
  
  font-size:30px;
 } 
 #picture { 
  width:275px;
  height:240px;
  margin-left:80px;
  margin-top: 30px;
 } 
 #message { 
  margin-top: 50px;
    margin-left:20px;
 } 
 #correct { 
  margin-left:20px; 
 }