* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container {
  width: 100vw;
  height: 100vh;
  background-color: rgb(159, 159, 159);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container .content {
  background-color: white;
  text-align: center;
  padding: 20px;
  border-radius: 4px;
  box-shadow: 6px 6px 0 0 black;
  border: 2px solid black;
}

.container .content button {
  margin-top: 10px;
  border: none;
  background-color: rgb(69, 150, 255);
  font-size: 16px;
  padding: 10px 20px;
  border-radius: 4px;
  color: white;
  cursor: pointer;
}