index.css

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@200;400;600;800&display=swap");
body {
  background-image: url(assets/images/frontend\ img.svg);
  height: 100vh;
  font-family: "Poppins", sans-serif;
}
.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 90%;
  width: 90%;
  background: rgb(245, 242, 242);
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
}
.confetti {
  display: block;
  margin: 0 auto;
  border: 1px solid #ddd;
  user-select: none;
}

.can {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow-y: hidden;
}

input {
  width: 70px;
  padding: 10px;
  border: 0.5px solid rgb(207, 198, 198);
  border-radius: 3px;
  font-weight: 600;
}
.age__cont {
  width: fit-content;

  height: fit-content;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 7px;
  border-bottom-right-radius: 20%;
  background: white;
  padding: 20px;
}
.tag {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding-bottom: 0px;
  color: rgb(184, 170, 170);
  font-size: 14px;
}
.tag span {
  color: blueviolet;
}
.date {
  display: flex;
  gap: 30px;
}
.day {
  display: flex;
  flex-direction: column;
}
.display {
  display: none;
}
.display p {
  font-size: 40px;
  line-height: 0;
  font-weight: 800;
}

.material-symbols-outlined {
  background: blueviolet;
  cursor: pointer;
  border-radius: 50%;
  color: white;
  padding: 5px;
  transition: 0.5s ease;
}
.material-symbols-outlined:hover {
  transform: scale(1.2);
}
.display span {
  color: blueviolet;
}
label {
  font-size: 12px;
}
.day p {
  font-size: 12px;
  display: none;
  color: red;
}
.icon {
  display: flex;
  align-items: center;
  margin: auto;
  justify-content: center;
  margin-top: 5px;
  gap: 10px;
}
@media screen and (max-width: 600px) {
  input {
    width: 30px;
    padding: 5px;
  }
  input::-webkit-inner-spin-button {
    appearance: none;
  }
  .date {
    gap: 10px;
  }
  .display p {
    font-size: 30px;
  }
  .age__cont {
    width: 90%;
  }
}