@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600;900&display=swap');


.head{
    font-family: 'Poppins', sans-serif;
    color: white;
    font-weight: 900;
    display: block;
    text-align: center;
    margin-top: 0;
    padding: 15px 0px;
}
.cal{
    margin: 50px 0px 50px;
    display: flex;
    justify-content: center;
    align-items: center;

}
tbody{
    border-top-width: 20px;
    border-left-width: 20px;
    border-bottom-width: 20px;
    border-right-width: 20px;
    border-color: black;
}
.display{
    position: relative;
    text-align: right;
    width: 350px;
    height: 50px;
    border-radius: 16px;
    border-color: gray;
    padding-right: 15px;
}
input[type="button"]{
    border-radius: 25px;
    background-color: gray;
    color: white;
    font-size: larger;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    width: 110px;
    height: 65px;
    text-align: center;
}
.clr{
    background-color: #ff5353;
    border-radius: 25px;
    font-size: larger;
    width: 110px;
    height: 65px;
    text-align: center;
}
input:active[type="button"]{
    background-color: red;
}
.clr:active{
    background-color: red;
}