@import url('https://fonts.googleapis.com/css2?family=Lobster&display=swap');

body {
  font-size: 20px;
  font-family: Lobster, sans-serif;
  text-align: center;
}

.main-page {
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
    background: black;
    display: inline-block;
    border: 100px solid #F44335;
    border-radius: 40px;
    box-shadow: 5px 10px 10px #888888;
    height: 500px;
    width: 500px;
}
.grid {
  display: grid;
  height: 500px;
  grid-template-columns: repeat(64, 1fr);
  grid-template-rows: repeat(64, 1fr);
  border: 5px solid black;
}
.cell {
    /* center the cell content */
  justify-content: center;
  align-items: center;
  display: flex;
  font-family: Arial;
  font-size: 3rem;
  font-weight: bold;
  background-color: #ffffff;
}

.options > input {
  padding: 20px;
  width: 200px;
}

.options > button {
  padding: 20px;
  width: 240px;
}

.options > input, .options > button {
  margin: 10px;
  border-radius: 10px;
  border: none;
  color: white;
  background-color: #F44335;
}

.options > input:hover, .options > button:hover {
  transform: scaleX(10px);
  background-color: #c2342a;
}

button:active {
  transform: translate(0px, 5px);
}

.slider {
  -webkit-appearance: none;  /* Override default CSS styles */
  appearance: none;
  width: 90%; /* Full-width */
  height: 15px; /* Specified height */
  background: #d3d3d3; /* Grey background */
  outline: none; /* Remove outline */
  opacity: 0.7; /* Set transparency (for mouse-over effects on hover) */
  border-radius: 10px;
  -webkit-transition: .2s; /* 0.2 seconds transition on hover */
  transition: opacity .2s;
}

  /* Mouse-over effects */
.slider:hover {
  opacity: 1; /* Fully shown on mouse-over */
}

/* The slider handle (use -webkit- (Chrome, Opera, Safari, Edge) and -moz- (Firefox) to override default look) */
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; /* Override default look */
  appearance: none;
  width: 25px; /* Set a specific slider handle width */
  height: 25px; /* Slider handle height */
  border-radius: 50%;
  background: #F44335; /* Green background */
  cursor: pointer; /* Cursor on hover */
}

.slider::-moz-range-thumb {
  width: 15px; /* Set a specific slider handle width */
  height: 15px; /* Slider handle height */
  background: #F44335; /* Green background */
  cursor: pointer; /* Cursor on hover */
}