body {
    font-family: Arial, sans-serif;
    background-image: url('bibitsawit.jpg'); /* replace 'path_to_your_image.jpg' with the actual image URL */
    background-size: cover; /* This makes the image cover the whole screen */
    background-position: center; /* This centers the image */
    color: #fff;
    margin: 0;
    padding: 20px;
}

 
header {
    background-color: #2196F3;
    padding: 10px;
    text-align: center;
}

h1 {
    margin: 0;
    color: #fff;
}

.sensor-info {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.sensor-circle {
    background-color: #2196F3;
    border-radius: 50%;
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 10px;
}

button {
    background-color: #f44336;
    color: white;
    padding: 10px;
    margin: 10px;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #e53935;
}

input[type="date"] {
    padding: 10px;
    margin-top: 10px;
}