*{
    margin: 0%;
    padding: 0%;
    box-sizing: border-box;
    font-family: sans-serif;
    font-weight: bold;
    font-size: 22px;
    color: grey;
}
body{
    background-color: white;
}
.container{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
.calculator{
    border-color: rgb(150, 68, 13);
    border: 1px solid;
    padding: 20px;
    border-radius: 10px;
    /* box-shadow:  5px 5px 5px 12px whitesmoke,
     5px 5px 12px rgba(204, 197, 197, 0.016); */
    display: grid;
    grid-template-columns: repeat(4,70px);
    padding: 10px;
    background-color: grey;
}
input{
    grid-column: span 4;
    text-align: right;
    padding: 10px;
    border-radius: 5px;
    border: none;
    background-color: black;
    outline: none;
    color: aquamarine;
}
input::placeholder{
    color: aquamarine;
}
button{
    width: 69px;
    height: 69px;
    border-radius: 50%;
    margin: 7px auto;
    box-shadow: -5px -5px 12px rgb(78, 77, 77), 
    5px 5px 19px rgba(0, 0, 0, 0.14);
    background-color: rgb(19, 18, 18);
}
.equal{
    width: 115px;
    border-radius: 20px;
    margin: 8px 15px;
}

button:hover{
    transition: .2s;
    border-color: aquamarine;
    box-shadow: black;
}