.post_nav_block {
    border-radius: 1.125em;
    background-color: #F5F9FD;
    box-sizing: border-box;
    z-index: 9;
    line-height: 1.4;
    margin: 0 auto 1.5em;
    padding: 1.25em 1em;
}
.post_nav_block_title {
    font-weight: 500;
    margin: 0 0 1em;
    font-size: 1.25em;
}
.post_nav_block ul {
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 1em;
}
.post_nav_block ul li:not(:last-child) {
    margin: 0 0 1.25em;
}
.post_nav_block a {
    color: inherit;
}
.post_nav_block ul ul {
    font-size: 0.875em;
    padding: 0.5em 0 0 0.5em;
}
.post_nav_block.hide_on_mob {
    display: none;
}