body {
    /* background-color: #abcbb5 !important;
    /* or any hex/rgb/hsl color */
    text-align: center;
    margin: 0 auto;
}

body img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.pv3 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.pv6 {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.pb7 {
    padding-bottom: 0;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    /* keeps it above other elements */
    background-color: rgba(0, 0, 0, 0.90);
    /* slight transparency for style */
    backdrop-filter: blur(6px);
    /* optional, adds a nice effect */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Prevent content from hiding behind the fixed navbar */
body {
    padding-top: 70px;
    /* adjust based on your header height */
}