body {
  font-family: Verdana;
 min-height: 100vh;
   margin: 50px;
   background: linear-gradient(#7030a0, #5ddcdc);
}

.page {
   min-height: 100vh;
   margin: 50px; 
   background: linear-gradient(#5ddcdc, #7030a0);
   
   display: flex;
   justify-content: center;
   align-items: center;
   text-align: center;
   flex-direction: column;
  
 }

.top-design {
    display: block;
    margin: 0 auto;
    max-width: 80%;
    height: auto;
    
  }  

.box {
    background-color: rgba(255, 255, 255, 0.4);
    border: 2px solid #333;
    border-radius: 10px;
    padding: 20px;
    max-width: 500px;
    margin: 20px auto;
    box-shadow: 20px 20px 25px rgba( 0, 0, 0, 0.4);
    }    

.box h3 {
  margin-top: 0;
  text-align: center;
  }  

.box ul {
  padding-left: 20px;
  }