.span-user-guide {
    background-color: blueviolet;
    color: white;
    padding: 4px 10px 5px;
    border-radius: 1rem;
}

.span-example-btn {
    padding: 4px 10px 5px;
    color: white;
    border-radius: 0.3rem
}

.img-user-guide {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
}

.a-user-guide {
    padding-right: 18px;
}