body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Robato', sans-serif;
    background: #3399ff;
    overflow: hidden;
}

.circle555 {
    position: absolute;
    border-radius: 50%;
    background: white;
    animation: ripple 22s infinite;
    box-shadow: 0px 0px 1px 0px #508fb9;
    z-index: 1;
}

.small555 {
    width: 25vw;
    height: 25vw;
    left: -12.5vw;
    bottom: -12.5vw;
}

.medium555 {
    width: 50vw;
    height: 50vw;
    left: -25vw;
    bottom: -25vw;
}

.large555 {
    width: 75vw;
    height: 75vw;
    left: -37.5vw;
    bottom: -37.5vw;
}

.xlarge555 {
    width: 100vw;
    height: 100vw;
    left: -50vw;
    bottom: -50vw;
}

.xxlarge555 {
    width: 125vw;
    height: 125vw;
    left: -62.5vw;
    bottom: -62.5vw;
}

.shade1555 {
    opacity: 0.7;
}

.shade2555 {
    opacity: 0.5;
}

.shade3555 {
    opacity: 0.3;
}

.shade4555 {
    opacity: 0.2;
}

.shade5555 {
    opacity: 0.1;
}

@keyframes ripple {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

.floating-element {
    animation: ripple 8s infinite ease-in-out;
}

.main-content555 {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100%;
    z-index: 2;
    position: relative;
}

    .main-content555 h1 {
        font-size: 2rem;
        font-weight: 700;
        color: white;
        margin-top: 1.5rem;
    }

    .main-content555 h5 {
        font-size: 1.5rem;
        font-weight: 700;
        color: white;
        margin-top: 0.2rem;
    }

    .main-content555 img {
        max-width: 40%;
        height: auto;
        max-height: 50vh;
    }

    .main-content555 button {
        background-color: #17558e;
        font-size: 1.2rem;
        font-weight: 700;
        color: white;
        margin-top: 0.3rem;
        padding: 0.5rem 2rem;
        border-radius: 5px;
        border: 2px solid #fff;
        transition: background-color 0.3s, color 0.3s;
        cursor: pointer;
    }

        .main-content555 button:hover {
            background-color: #0e4c73;
            color: #ffffff;
            border-color: #fff;
        }


.sidebar555 a {
    color: #cfcfcf;
    text-decoration: none;
    font-size: 1.2rem;
    display: block;
    padding: 15px 0;
    margin: 10px 0;
    border-bottom: 1px solid #484848;
}

    .sidebar555 a:hover {
        color: #ffffff;
    }

footer555 {
    text-align: center;
    padding: 15px;
    background-color: #343a40;
    color: #ffffff;
    position: absolute;
    bottom: 0;
    width: 100%;
}

.content-box555 {
    background-color: #1272bb;
    background-image: linear-gradient(to right, rgba(18, 114, 187, 1), rgba(9, 57, 94, 0.5));
    border-radius: 10px;
    box-shadow: 0 3rem 3rem rgba(0, 0, 0, 0.9);
    text-align: center;
    padding: 3rem;
    width: 50%;
}