body{
    box-sizing: border-box; 
    margin: 0px;
    background-color: aliceblue;
 }
  nav{
    height: 50px;
    width: 100%;
    margin-top: -200px;
     display: flex;
     background-color: rgb(148, 148, 249);
     overflow: hidden;
     position: fixed;
 }
 .logo{
     flex:0.2;
   
 }
 .nav-items{
     flex:0.8;
     
     display: flex;
     justify-content: space-evenly;
     
 }
 .nav-items a{
     color: black;
     height:fit-content;
     width:fit-content;
     padding: 5px;
     font-size: 25px;
     margin: auto;
     text-decoration: none;  
 }
 /* .nav-items a:hover{
 color: white;
 } */
 .nav-items a strong{
     padding: 5px;
     border-radius: 3px;  
   }
 .logo img{
     height:50px;
     width:70px;  
 }
 .references{
    
   border: 5px solid;
   width: 400px;
   height: 300px;
    display: flex;
    flex-direction: column;
    background-color: aquamarine;
    margin: auto;
    margin-top: 200px ;
    margin-bottom: 100px;
    align-items: center;
    justify-content: center;
    font-size: 24px;
   

 }
 
 .references ul a {
    text-decoration: none;
    color: black;
    padding: 4px;
    

 }
li{
   list-style-type:  symbols(disc);
   font:  sans-serif;
   padding-left: 10px;
}

 li:hover{
    color:blue;
    text-decoration: underline;
 }
 .thanks,.qns{
    width:100%;
    margin: 10px;
    
 }
 img{
    border-radius: 10px;
 }
 .btn{
   display: flex;
   justify-content: center;
   
   font-size: 24px;
   
} 
.btn div {
   background-color: aliceblue;
   margin: 20px;
   margin-top: 50px;
   margin-bottom: 10px;
   width:100px;
   padding:8px;
   text-align: center;
   padding-left: 15px;
   padding-right: 15px;
   border:2px solid lightgrey ;
   border-radius: 5px;
   
  
}
.btn a{
   text-decoration: none;
   color: black;
}
.btn div:hover{
   cursor: pointer;
   background-color: hsl(0, 2%, 87%);
   box-shadow: 5px 5px 5px  rgba(0, 0, 255, .15);
}