body {
 text-align: center;
 background-color: snow;
}
input {
width: 40vw;
font-size: 10vw;
background-color: grey;
border: none;
}
.topSetting{
margin: 1vw;
margin-bottom: -2vw;
display: flex;
align-items: center;
justify-content: center;
}
.clear{
background-color: red;
}
button {
border: 1px solid grey;
border-radius: 3%;
margin: 0.5vw;
width: 12vw;
height: 12vw;
font-size: 8vw;
}
.calculator {
margin: 16vw;
padding-bottom: 3vw;
padding-top: 3vw;
border: 1px solid grey;
border-radius: 3%;
background-color: lightGray;
}