style.css

body { 
    margin:0; font:normal 75% Arial, Helvetica, sans-serif;} 
canvas { 
    display: block; vertical-align: bottom; }

h1 {
    font-size: 1.5em;
    margin-bottom: 10px;

   }
#top-container {
        position: relative;
        width: 100%;
        height: 100vh;
        margin-top: 20px; /* Adds 20px margin above the particle canvas container */

    }
/* ---- particles.js container ---- */
#particles-js { 
    position:absolute; 
    width: 100%; 
    height: 100%; 
    background-color: #fcfcfc; 
    background-image: url(""); 
    background-repeat: no-repeat; 
    background-size: cover; 
    background-position: 50% 50%;
    opacity: 0.9;
    z-index: 0;
}

/* ---- stats.js ---- */ 
.count-particles { 
        background: #000022; position: absolute; top: 48px; left: 0; width: 80px; color: #13E8E9; font-size: .8em; text-align: left; text-indent: 4px; line-height: 14px; padding-bottom: 2px; font-family: Helvetica, Arial, sans-serif; font-weight: bold; } 
.js-count-particles{ font-size: 1.1em; } 
#stats, .count-particles{
    -webkit-user-select: none; margin-top: 5px; margin-left: 5px; } 
#stats{ 
    border-radius: 3px 3px 0 0; overflow: hidden; } .count-particles{ border-radius: 0 0 3px 3px; }

#reading-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: #fffff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: 20px auto;
    font-size: 2em;
    flex-direction: column;
    position: absolute;
    z-index: 0; /* Below the particles */
    pointer-events: none; /* Ignore mouse events */
}

#latest-timestamp {
    font-size: 0.8em;
    margin-bottom: 20px;
}
.reading-value {
    font-size: 5em;
    line-height: 1;
}
.reading-unit {
    font-size: 1em;
    line-height: 1;
}
/* Bottom container for Trend Chart */
#bottom-container {
    width: 100%;
    height: 100vh;
    position: relative;
    margin-top: 60px;
    justify-content: center; /* Center the chart horizontally */
    align-items: center; /* Center the chart vertically */
    z-index: 0;
}

/* Trend Chart */
#trendChart {
    max-width: 100%; /* Ensure it doesn't exceed the container's width */
    height: auto; /* Maintain aspect ratio */
}