* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: dynamicBackground 15s infinite ease-in-out; 
  background-size: cover;
  background-position: center;
}

@keyframes dynamicBackground {
  0% {
    background-image: url('https://images.unsplash.com/photo-1607962837359-5e7e89f86776?q=80&w=1470&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
  }
  33% {
    background-image: url('https://images.unsplash.com/photo-1518458717367-249ba15389d2?q=80&w=1470&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
  }
  66% {
    background-image: url('https://images.unsplash.com/photo-1541534741688-6078c6bfb5c5?q=80&w=1469&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
  }
  100% {
    background-image: url('https://images.unsplash.com/photo-1534367507873-d2d7e24c797f?q=80&w=1470&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
  }
}

.container {
  height: 70vh;
  width: 26vw;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.2);
  padding: 1rem;
  border-radius: 12px;
  border: 2px solid #fff;
  padding-left: 30px;
}

.result-box {
  margin-top: 12px;
  padding: 2px 4px;
  border-radius: 4px;
  background-color: aliceblue;
  display: flex;
}

#results {
  padding: 5px 12px;
  font-size: 22px;
  color: rgb(0, 3, 3);
}

#height,
#weight {
  width: 150px;
  height: 25px;
  margin-top: 30px;
}

#weight-guide {
  margin-left: 75px;
  margin-top: 25px;
}

button {
  width: 170px;
  height: 35px;
  margin-left: 90px;
  margin-top: 25px;
  background-color: #fff;
  padding: 1px 30px;
  border-radius: 8px;
  color: #212121;
  text-decoration: none;
  border: 2px solid #212121;
  font-size: 25px;
}

input {
  padding: 1px 7px;
  border-radius: 4px;
  font-weight: 700;
  border: 1px solid black;
}

label {
  font-weight: 800;
  color: black;
  font-size: 18px;
}

h1 {
  border-radius: 12px;
  font-size: 2.3rem;
  color: rgb(5, 5, 6);
  padding-left: 15px;
  padding-top: 25px;
}

p {
  padding: .2rem;
  font-size: 16px;
  color: rgb(249, 249, 249);
}