CSS
*{
box-sizing: border-box;
font-family: Arial, Helvetica, sans-serif;
font-weight: normal;
}
body{
background: linear-gradient(to right,#e302f3, #00aaff);
}
.calculator-grid{
display: grid;
justify-content: center;
align-content: center;
min-height: 100vh;
grid-template-columns: repeat(4, 100px);
grid-template-rows: minmax(120px, auto) repeat(5, 100px);
}
.calculator-grid > button{
cursor: pointer;
font-size: 2rem;
border: 1px solid white;
outline: none;
background-color: rgba(255, 255, 255, 0.75);
}
.calculator-grid > button:hover{
background-color: rgba(255, 255, 255, 0.9);
}
.doubled-grid{
grid-column: span 2;
}
.output{
grid-column: 1 / -1;
background-color: rgba(0, 0, 0, 0.75);
display: flex;
align-items: flex-end;
justify-content: space-around;
flex-direction: column;
padding: 10px;
word-wrap: break-word;
word-break: break-all;
}
.output .first-operand{
color: rgba(255, 255, 255, 0.75);
font-size: 1.5rem;
}
.output .second-operand{
color: white;
font-size: 2.5rem;
}