#mybtn {
  margin-top: 1rem;
  margin-left: 8.5rem;
  margin-bottom: 1rem;
  background-color: aqua;
}
input {
  text-align: center;
  margin: 1rem;
  z-index: 10;
  box-shadow: 0px 2px 10px rgb(90, 90, 90);
  border: none;
  border-radius: 2rem;
  width: 10rem;
  height: 2rem;
}
body {
  height: 100vh;
  background-image: linear-gradient(orange, red);
}

.outer {
  background-color: rgb(85, 84, 84);
  width: 250px;
  height: 200px;
  padding: 4px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}
.div-1 {
  background-color: green;
  width: 81px;
  margin: 1px;
  height: 64px;
  box-shadow: 0px 1px 4px black;
  border-radius: 0.5rem;
}
.div-1:hover {
  box-shadow: 0px 1px 14px black;
}
.bg {
  background-color: white;
}
.bgR {
  background-color: yellow;
}
.active {
  background-color: black;
  z-index: 10;
  font-weight: bolder;
  color: white;
}
.active2 {
  background-color: yellow;
  z-index: 10;
}

button {
  width: 5rem;
  height: 2rem;
  border-radius: 2rem;
  border: none;
  box-shadow: 1rem 2rem 10rem black;
}