css-tricks.css

.container {
  display: flex;
  background: url("headercover.jpg") bottom center no-repeat;
  background-size:cover;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
  align-items: center;
  height: 50vh;
}

.logo {
  flex: 1;
  width: 285px;
  height: 38px;
}

.text {
  flex: 1;
  font-size: 20px;
  color: #fff;  
  margin-top: 20px
}

.button {
  flex: 1;
  font-size: 16px;
  color: #fff;
  margin-top: 10px;
}