style.css

*,
::before,
*::after {
  box-sizing: border-box;
  font-family: "Courier New", Courier, monospace;
  font-weight: normal;
}

body {
  padding: 0;
  margin: 0;
  background-color: lightblue;

  /* background-image:url('https://images.unsplash.com/photo-1553532434-5ab5b6b84993?ixid=MnwxMjA3fDB8MHxzZWFyY2h8NTB8fGdlb21ldHJpYyUyMHBhdHRlcm58ZW58MHx8MHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=500&q=60');
    background-repeat: no-repeat;
    background-size: cover; */
}
.container {
  width: 800px;
  height: 750px;
  background-image: url("https://images.unsplash.com/photo-1553532434-5ab5b6b84993?ixid=MnwxMjA3fDB8MHxzZWFyY2h8NTB8fGdlb21ldHJpYyUyMHBhdHRlcm58ZW58MHx8MHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=500&q=60");
  margin: 20px auto;

  background-size: cover;
  padding: 50px 10px;
}

/* .calculator{
    width:320px;
    height:500px;
    background-color: cornsilk;
    margin: 0 auto;
    top:20px;
    position:relative;
    border-radius: 5px;
    box-shadow: 0 4px 8px 4px rgba(0, 0, 0, 0,2) 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    color:black;
} */
.calculator-grid {
  display: grid;
  justify-content: center;
  align-content: center;
  height: 600px;
  min-height: 80vh;
  grid-template-columns: repeat(4, 80px);
  grid-template-rows: minmax(120px, auto) repeat(5, 80px);
  grid-gap: 8px;
  width: fit-content;
  background-color: whitesmoke;
  margin: 0 auto;
}

button {
  margin: 5px 5px;
}

#dot {
  font-size: 3rem;
}

.calculator-grid > button {
  cursor: pointer;
  font-size: 2rem;
  border: 1px slid white;
  outline: none;
  background-color: rgba(255, 255, 255, 0.75);
}

.calculator-grid > button:hover {
  background-color: rgba(51, 47, 47, 0.9);
}

.calculator-grid > button:active {
  font-size: 0.5 rem;
}
.calculator-grid > button:nth-child(5) {
  font-size: 2rem;
  background-color: #0000ff;
}
button:nth-child(9) {
  font-size: 2rem;
  background-color: #ff6347;
}
button:nth-child(13) {
  font-size: 2rem;
  background-color: #ffff00;
}
button:nth-child(17) {
  font-size: 2rem;
  background-color: #ee82ee;
}
button:nth-child(21) {
  font-size: 2rem;
  background-color: #adff2f;
}

/* make the AC and '==' span two columns */
/* .span-two {
  grid-column: span 2;
} */

/* style the output */
/* grid going from 1 to -1 means go from first(1) to last column (-1) */
/* flex-direction column makes the content align vertically */
/* word-wrap break words in the middle and word-break makes long numbers wrap to next line */

.output {
  grid-column: 1/ -1;
  background-color: rgba(0, 0, 0, 0.822);
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  flex-direction: column;
  padding: 0px;
  margin-top: -20px;
  margin-bottom: -5px;
  word-wrap: break-word;
  word-break: break-all;
  height: 90px;
}

.output .previous-operand {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.5rem;
}
.output .current-operand {
  color: white;
  font-size: 2.5rem;
}
.number,
.operator {
  border-radius: 50%;
  border-width: 0;
  font-weight: bold;
  font-size: 1.5rem;
}