Hi,

Please go to Appearance → Customize → Custom CSS then add the following custom CSS code:

@media only screen and (max-width: 767px) {
    .post-pagination {
        display: flex;
        flex-wrap: wrap;
        flex-direction: row;
        justify-content: space-between;
    }
    .post-pagination .prev-post,
    .post-pagination .next-post {
        width: 45%;
    }
}

Regards,
PenciDesign.

Hi,

Please send me the URL that is related to this issue.

Regards,
PenciDesign.