style.css

/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
body {
  font-family: 'Arial', sans-serif;
  background-color: #f0f2f5;
  color: #333;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
#kelvin {
  fill: #00FF00; /* change the color of the Kelvin icon to green */
}
div {
  text-align: center;
  margin-bottom: 20px;
}

h1 {
  color: #007bff;
}

main {
  background-color: #fff;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  max-width: 400px;
  width: 100%;
}

section {
  margin-bottom: 20px;
}

label {
  display: block;
  font-weight: bold;
  margin-bottom: 8px;
  color: #007bff;
}

.input-container {
  position: relative;
}

input[type="number"] {
  width: 100%;
  padding: 10px;
  padding-right: 40px; /* Space for the icon */
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 16px;
  box-sizing: border-box;
  transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="number"]:focus {
  border-color: #007bff;
  outline: none;
  box-shadow: 0 0 8px rgba(0, 123, 255, 0.25);
}

input[type="number"]::placeholder {
  color: #aaa;
}

.input-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);

  color: #007bff;
  fill: currentColor;
}