h1 {
    font-size: 50px;
    margin: 0;
    padding: 0;
}

.container {
    background-color: aquamarine;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    row-gap: 50px;
}

.button {
    background-color: white;
    color: black;
    border: 1px solid black;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 18px;
    transition-duration: 0.2s;
    border-radius: 10px;
}

.button:hover {
    opacity: 0.9;
}

.button:active {
    box-shadow: 1px 1px black;
}

.button-label {
    display: flex;
    align-items: center;
    column-gap: 10px;
}

.button-text {
    font-size: 20px;
    opacity: 0;
    transition-duration: 0.2s;
}

.button-text.is-pressed {
    opacity: 1;
}

body {
    padding: 0;
    margin: 0;
}

.block {
  width: 300px;
  height: 200px;
  background-color: green;
  position: relative;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  background-image: radial-gradient(#000 1px, transparent 1px);
  background-size: 10px 10px;
  background-position: -4px 10px;
  border: 10px solid black;
}

.ball {
  background-color: black;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  position: absolute;
  transition-duration: 0.1s;
  transition-timing-function: linear;
  top: 0;
  left: 0;
}

.playfield {
  position: absolute;
  left: 10px;
  top: 10px;
}