.calckey-basic .calckey-pad {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 5px;
  align-content: start;
}

.calckey-basic .key-btn.calckey-mem {
  background-color: #FDF0F0;
  border-color: #E87A7A;
}

.calckey-basic .key-btn.calckey-mem:hover {
  background-color: #FBE2E2;
  border-color: #D65E5E;
}

.calckey-basic .key-btn.calckey-mem.key-memory-set {
  background-color: #F7C9C9;
  border-color: #D65E5E;
  font-weight: 700;
}