body {
    font-family: Arial, sans-serif;
    margin: 50px 20px;
    padding: 0;
    line-height: 1.6;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.text {
    text-align: justify;
    max-width: 900px;
}

#cert {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 8px;
}

#npc {
    width: 25px;
    margin-right: 5px;
    margin-top: -10px;
}
.return-btn {
    position: fixed;
    top: 15px;
    right: 20px;
}

@media (max-width: 768px) {
    .return-btn {
        top: 10px;
        right: 0px;
    }
}