*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Courier New', Courier, monospace;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-direction: column;
    /* color: #ffffff; */
}

.calc-body{
    width: 35vw;
    height: 90vh;
    background: rgb(51, 46, 46);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    min-width: 350px;
}

.screen{
    width: 90%;
    height: 100px;
    background: gray;
    margin-top:5%;
    font-size: 2em;
}

.numpads{
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    width: 98%;
    height: calc(100% - 200px);
    background: rgb(168, 150, 150);
}

.row{
    display: flex;
    flex-direction: row;
    width: 100%;
    height: 22%;
    justify-content: space-evenly;
    align-items: center;
    position: relative;
}

.row > span{
    position: relative;
    border-radius: 50%;
    padding: 18px;
    box-shadow: 3px 3px 5px black,
                inset 3px 3px 4px white;
}

.third-row{
    position: relative;
    left: -11%;
    width: 79%;
}

.row .clear{
position: relative;
left: 12px;
bottom: 40%;
display: inline-block;
height: 150px;
border-radius: 22px;
text-align: center;
display: flex;
justify-content: center;
align-items: center;
}