.main-container {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 250px;
  height: 300px;
  content-align: center;
  justify-content: center;
  background-image: url("https://images.unsplash.com/photo-1495313196544-7d1adf4e628f?q=80&w=2071&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D");
  background-size: cover;
  background-position: center;
  overflow: hidden;
  
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.7); /* semi-transparent black */
}

.content {
  position: relative;
  z-index: 2;
  color: #000;
  text-align: center;
  padding: 20px;
}

.content h2 {
  font-family: poppins;
  margin: 0;
}

.content h1 {
  font-family: poppins;
  font-size: 42px;
  margin: 0;
}

.content .btn {
  padding: 8px 35px;
  margin: 3px 0;
  background: darkred;
  width: 100%;
  color: #fff;
  border: 0;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
}

.btn-2 {
  background-color: green !important;
  cursor: pointer;
  z-index: 2;
}

.output {
  position: relative;
  z-index: 2;
  color: #000;
  text-align: left;
  padding: 0 20px;
  font-size: 16px;
  margin: 0;
}