* {
    padding: 0;
    margin: 0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f5f5f5;
}

.button-container {
    display: flex;
    justify-content: space-between;
}

#s2r {
    background-color: #490f0b;
}

#i5k {
    background-color: #001B48;
}

button {
    text-decoration: none;
    font-size: 24px;
    padding: 15px 25px;
    border: none;
    border-radius: 5px;
    color: white;
    background-color: #3498db;
    transition: 0.3s ease-out;
    margin: 0 15px;
    height: 150px;
}

button:hover {
    box-shadow: inset 0 0 100px 100px rgba(255, 255, 255, 0.1);
}