/* #container {
  display: flex;
  width: 100%;
  height: fit-content;
  padding: 20px;
  background-image: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3));

  margin: 20px auto;
} */
#calculator {
    width: 100%;
    min-height: 355px;
    margin: auto;
    padding: 10px;
    position: relative;
}
#result {
  height: 120px;
  border-width: 2px;
  border-color: black;
  border-radius: 5px;
  background-color: #c2c7cb;
  font-size: fit-content;
  overflow: scroll;
}

#history {
  text-align: right;
  height: 20px;
  margin: 0 20px;
  padding-top: 20px;
  font-size: 15px;
  color: #919191;
}
#result::-webkit-scrollbar {
  display: none;
}
#history::-webkit-scrollbar {
  display: none;
}
#output {
  text-align: right;
  height: 60px;
  margin: 10px 20px;
  font-size: 30px;
}
#keyboard {
  background-color: #eaedef;
}
.operator, .number, .empty {
    width: 23%;
    height: 50px;
    margin: 1%;
    float: left;
    border-radius: 10px;
    border-width: 0;
    font-weight: bold;
    font-size: 15px;
    text-align: center;
    padding-top: 13px;
}
.number,
.empty {
  background-color: #eaedef;
}
.number,
.operator {
  cursor: pointer;
}
.operator:active,
.number:active {
  font-size: 13px;
}
.operator:focus,
.number:focus,
.empty:focus {
  outline: 0;
}
#calculator a:nth-child(4), #calculator a:nth-child(8), #calculator a:nth-child(12), #calculator a:nth-child(16), #calculator a:nth-child(21) {
    background-color: rgba(0,0,0,0.2);
    font-weight:700;
}


.copyright p {
  margin-top: 1.2rem;
  color: #ffffff;
  text-align: center;
  font-size: 0.9rem;
}

.copyright h5 {
  margin-bottom: 1.2rem;
  margin-top: 1rem;
  text-align: center;
  font-size: 1.1rem;
}