*{
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body{
    padding: 0;
    margin: auto;
}
.container{
    display: flex;
    flex-direction: column;
    width:30vw;
    background-color: aquamarine;
    margin:auto;
    padding:1rem;
    text-align: center;
    border-radius: 0.4rem;
    margin-top: 1rem;
}
.description{
    border-style: dotted;
    border-color: #0cb67d;
    padding: 0.5rem;
}
#error-message1 , #error-message2{
    font-size: large;
    font-weight: bold;
}
img{
    margin: auto;
}
label{
    font-weight: bold;
    font-size: large;
}
#bill-amount ,#cash-give{
    padding: 0.5rem;
    border-radius:0.3rem;
    margin-bottom: 0.7rem;
}
button{
    margin-top: 0.6rem;
    margin-bottom: 0.8rem;
    padding: 0.5rem;
    border:none;
    border-radius: 0.3rem;
    font-weight: bolder;
    font-size: large;
    background-color: #3ae0a9;
    box-shadow: 4px 7px grey;
}
button:hover{
    background-color: black;
    transition: 0.6s;
    color: white;
}

.change-table {
    margin: auto;
    background: #edf2fb;
    border: 1px solid #333;
    border-collapse: collapse;
    border-radius: 0.3rem;
    padding: 0.5rem;
}
th,td{
    text-align: center;
    border: 1px solid #333;
    padding: 0.1rem;
    
}
caption{
    margin:0rem 1rem ;
    font-size: large;
    font-weight: bold;
}
@media only screen and (max-width:640px){
    label{
        margin-top: 0.5rem;
    }
    .container{
        width: 90%;
        margin-top: 0rem;
    } 
    body{
        background-color: aquamarine;
    }

}