body,
html {
  height: 100%;
}
body {
  font-family: Arial, sans-serif;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #1d1d1d;
  flex-direction: column;
  color: #efefef;
}
h2 {
  width: 400px;
  text-align: center;
  line-height: 1.5em;
  font-weight: normal;
}
button {
  margin-top: 20px;
  cursor: pointer;
}

.circle {
  text-align: center;
  line-height: 50px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: red;
  color: white;
  position: relative;
  left: -100px;
}
.wrapper {
  width: 400px;
  height: 300px;
  background: #111;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}