body{
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background-color: rgb(219, 219, 219);
 
}

h1{
    text-align: center;
    font-size:xx-large;
    padding:2%;
}
#main{
    padding: 0% 10%;
}

#box{
    border-radius: 20px;
    background-color: white;
    padding:5%;
    display:flex;
    justify-content: center;
}
strong{
    font-weight: bolder;
}

table{
    background-color: white;
    table-layout: fixed ;
    width: 100% ;
    text-align: center;
}

table,th,td {
    padding: 10px;
    border: 2px solid black;
    border-collapse: collapse;
}
#BT_sub {
   height:50px;
    width:100px ;
    background-color:white;
}
#BT_sub:hover{
    background-color:rgba(78, 189, 63, 0.541)
}