body{
    box-sizing: border-box; 
    margin: 0px;
    background-color: aliceblue;
 }
 
  nav{
    height: 50px;
   width: 100%;
    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: whitesmoke;
 } */
 .nav-items a strong{
   padding: 5px;
   border-radius: 3px;
   
 }
 
 .logo img{
     height:50px;
     width:70px;  
 }
 .main-container{
    /* background-color: whitesmoke; */
    width:100%;
    height:100vh;
display: flex;
flex-direction: column;
    margin-left: 60px;
    
    padding: 50px;
    
    
 }
 
 .main-container p,pre,ul{
    font-size: 24px;
    margin-top: 9px;
    margin-bottom: 8px;
    
 }
 .big-para{
   line-height: 35px;
   width:1100px;
 }
 .main-container h1{
    margin-bottom: 0px;
 }
 .main-container pre{
    width:70%;
    background-color: hsl(0, 2%, 87%);
    padding: 10px;
    box-shadow: 5px 5px 5px  rgba(0, 0, 255, .15);
    
    border-left: 4px solid #344e78;
  
 }
 .gray{
   background-color: lightgray;
   padding: 2px;
   border: 1px solid;
   border-radius: 4px;
 }
 .main-container ul li{
    padding-bottom: 5px;
    
 }
.btn{
   display: flex;
   justify-content: center;
   margin-bottom: 10px;
   font-size: 24px;
   
} 
.btn div {
   
   
   background-color: aliceblue;
   margin: 20px;
   margin-top: 40px;
   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);
}