h1 {
  color: teal;
  font-size: 50px;
  text-align: center;
}

#layout {
  width: 20%;
  /* border:1px solid red; */
  display: grid;
  margin: auto;
  box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
    rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
  margin-top: 60px;
  border-radius: 2%;
}

#screen {
  width: 90%;
  /* border:1px solid teal; */
  height: 60px;
  margin: auto;
  border-radius: 8px;
  margin-top: 50px;
  box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
    rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
  display: grid;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

#keyboard {
  width: 80%;
  height: auto;
  /* border:1px solid green; */
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 70px);
  grid-template-rows: repeat(4, 70px);
  gap: 20px;
  justify-content: space-around;
  margin-top: 15px;
  margin-bottom: 50px;
}

#keyboard > div {
  /* border:1px solid brown; */
  display: grid;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  font-size: 20px;
  font-weight: bold;
  box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
    rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
  cursor: pointer;
}

.red {
  color: white;
  background-color: red;
}

.black {
  color: white;
  background-color: black;
}

@media only screen and (min-width: 1200px) and (max-width: 1800px) {
  #layout {
    width: 25%;
    /* border:1px solid red; */
    display: grid;
    margin: auto;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    margin-top: 60px;
    border-radius: 2%;
  }
  #screen {
    width: 80%;
    /* border:1px solid teal; */
    height: 60px;
    margin: auto;
    border-radius: 8px;
    margin-top: 50px;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    display: grid;
    align-items: center;
    justify-content: center;
    font-size: 22px;
  }
  #keyboard > div {
    /* border:1px solid brown; */
    display: grid;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    padding:20px;
    font-size: 20px;
    font-weight: bold;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    cursor: pointer;
  }
 
}

@media only screen and (min-width: 500px) and (max-width: 1199px) {
  #layout {
    width: 30%;
    /* border:1px solid red; */
    display: grid;
    margin: auto;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    margin-top: 60px;
    border-radius: 2%;
  }
  #screen {
    width: 82%;
    /* border:1px solid teal; */
    height: 60px;
    margin: auto;
    border-radius: 8px;
    margin-top: 50px;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    display: grid;
    align-items: center;
    justify-content: center;
    font-size: 22px;
  }
  #keyboard {
    width: 80%;
    height: auto;
    /* border:1px solid green; */
    margin: auto;
    display: grid;
    grid-template-columns: repeat(4, 50px);
    grid-template-rows: repeat(4, 50px);
    gap: 20px;
    justify-content: space-around;
    margin-top: 15px;
    margin-bottom: 50px;
  }
}

@media only screen and (min-width: 250px) and (max-width: 499px) {
  #layout {
    width: 90%;
    /* border:1px solid red; */
    display: grid;
    margin: auto;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    margin-top: 60px;
    border-radius: 2%;
  }
  #screen {
    width: 82%;
    /* border:1px solid teal; */
    height: 60px;
    margin: auto;
    border-radius: 8px;
    margin-top: 50px;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px,
      rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    display: grid;
    align-items: center;
    justify-content: center;
    font-size: 22px;
  }
  #keyboard {
    width: 80%;
    height: auto;
    /* border:1px solid green; */
    margin: auto;
    display: grid;
    grid-template-columns: repeat(4, 40px);
    grid-template-rows: repeat(4, 40px);
    gap: 20px;
    justify-content: space-around;
    margin-top: 15px;
    margin-bottom: 50px;
  }
}