style.css

html,
body {
  text-align: center;
  background-color: rgb(37, 38, 41);
  color: whitesmoke;
}
body {
  margin: auto;
  border: solid;
  max-width: 500px;
  border-radius: 25px;
  padding: 10px;
  background-color: rgb(34, 34, 34);
  box-shadow: rgba(255, 255, 255, 0.4) 0px 2px 4px,
    rgba(255, 255, 255, 0.3) 0px 7px 13px -3px,
    rgba(255, 252, 252, 0.2) 0px -3px 0px inset;
}

h1 {
  margin-top: 0;
  text-shadow: 0 1px 0 rgb(202, 202, 202);
}
#start {
  padding: 10px 25px;
}
button {
  /* padding: 10px 25px; */
  background-color: aqua;
  color: black;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
}
button:hover {
  color: brown;
  background-color: aquamarine;
}
.buttons button {
  margin: 5px;
}
#grid {
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  width: 200px;
  height: 200px;
  margin-top: 25px;
  background-color: white;
  box-shadow: rgba(255, 255, 255, 0.35) 0px 5px 15px;
  border-radius: 5px;
}
#LR-buttons {
  display: flex;
  justify-content: space-around;
}

.square {
  width: 20px;
  height: 20px;
  border-radius: 8px;
}
#head {
  background-color: brown;
  border-radius: 5px;
}

.snake {
  background-color: green;
  box-shadow: rgba(0, 0, 0, 0.89) 0px 5px 15px;
}
.dead {
  background-color: brown;
  box-shadow: rgba(0, 0, 0, 0.89) 0px 5px 15px;
}
.apple {
  background-color: red;
  border-radius: 10px;
  box-shadow: rgba(0, 0, 0, 0.89) 0px 5px 15px;
}