body{
    background-color: aqua;
    
}
.container{
    padding : 2rem;
    text-align: center;
    width:50%;
    margin :10rem auto;
    background-color: burlywood;
    border : green 4px solid ;
    border-radius: 5px;
}
.box{
    display: flex;
}
#vala,#valb {
    display: inline-block;
    margin:auto;
}
.btn{
    margin :2rem 2rem;
}
button{
    width : 5rem;
    height:3rem;
}