* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #f5f5f5;
}
header {
  background-color: #fff;
  padding: 10px 0;
  border-bottom: 1px solid #ccc;
  display: flex;
  align-items: center;
  height: 200px;
  flex-direction: column;
  justify-content: center;
}

h1 {
  font-size: 2.5rem;
  font-weight: 400;
  color: #333;
  margin-bottom: 10px;
}

.battery-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-bottom: 10px;
  flex-direction: column;
  max-width: 500px;
  border: 1px solid #ccc;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
  margin-top: 20px;
}

.item {
  margin: 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border-bottom: 1px solid #ccc;
}

h3 {
  font-size: 1.5rem;
  font-weight: 400;
  color: #333;
  margin-right: 20px;
}

span {
  font-size: 1.5rem;
  font-weight: 400;
  color: purple;
}

a {
  text-decoration: none;
  color: purple;
  padding: 10px;
  border: 1px solid purple;
  border-radius: 5px;
  margin: 10px;
  font-size: 1.5rem;
  font-weight: 400;
}