<button>Enabled button</button>
<br />
<button disabled>Disabled button</button>

body {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 2rem;
  line-height: 3.5rem;
}
button {
  padding: 1rem;
  font-size: 1.5rem;
  background: pink;
  color: black;
  border: 1px solid black;
}
button:disabled {
  background: lightGray;
  color: #333;
  cursor: not-allowed;
}