style.css

body{
    background-color:#0642f7;
    justify-content: center;
    align-items: center;
    min-height: 100vh;  
    margin:0;  

}
label{
 margin-left: 20px;
 font-size: 15px;
 font-family: "Lucida Console", "Courier New", monospace;
 margin-top: 5px;
 font-weight: bold;

}
#btn{
    margin-left: 100px;
    background-color: black;
    color:white;
    border-radius: 5px;
    width:170px;
    padding:10px 18px;
    
}

input{
    width:300px;
    margin-left: 30px;
    margin-top: 10px;
}
#container{
    display:absolute;
    width:400px;
    height:300px;
    background-color: white;
    margin-top: 50px;
    border-radius: 10px;

}
input{
    outline: 0;
}
form{
     justify-content: center;
     /* background-color:yellow; */
     display: flex;
     padding:5px;
}
h2{
    width:400px;
    height:50px;
    background-color: grey;
    color:yellow;
    text-align: center;
    margin-top: 0px;
    border-radius: 10px;
} 
#dis_table{
    width: 520px;
    height:100px;
    border:2px solid black;
    border-collapse: c;
    background-color: white;
    margin-top: 80px;
    margin-left: 410px;
    
    
}
th{
    border:2px solid;
    width: 150px;
}
td{
    text-align: center;
}