body {
  background: linear-gradient(45deg, #dde 12%, transparent 0, transparent 88%, #dde 0),
              linear-gradient(135deg, transparent 37%, #aab 0, #aab 63%, transparent 0),
	      linear-gradient(45deg, transparent 37%, #dde 0, #dde 63%, transparent 0),
	      #335;
  background-size: 40px 40px;
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

h1 {
  text-align: center;
  font-size: clamp(1.5rem, 4.5vw, 5rem);
}


.bday {
  display: flex;
  justify-content: center;
  text-align: center;
  flex-direction: column;
  align-items: center;

  /* Background */
  background: rgba(255, 255, 255, 0.75);
  width: 85%;
  height: 85%;
}

.gifts {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width: 1200px;
}

.gift-img {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.bow {
  width: 50%;
  height: 2px;
  background-color: red;
}

.lid {
  width: 100%;
  height: 5px;
  border: 2px solid transparent;
  background-color: blue;
}

.box {
  width: 100%;
  height: 50px;
  border: 2px solid lightblue;

.gift-btn {
  width: 100%;
  border: 2px solid blue;
}