Next-Previous navigation in blog post

Hi there,

Try this:
https://generatepress.com/forums/topic/changing-post-navigation-text-to-next-instead-of-title/#post-737583

Sir this article’s 1st CSS is not work in my-site, 2nd one is work properly but I need “NEXT” “PREVIOUS” button instead of this title

also, I try this CSS to changing into NEXT-PREVIOUS

/* In-Post Navigation Dekstop */ 
@media (min-width: 769px) { .post-navigation {
    display: flex;
}

.post-navigation .nav-next {
    width: 50%;
    text-align: left;
}

.post-navigation .nav-previous {
    width: 50%;
}

.post-navigation .nav-next .next:before {
    display: none;
}

.post-navigation .nav-next .next:after {
    font-family: GeneratePress;
    text-decoration: inherit;
    position: relative;
    margin-right: .6em;
    width: 13px;
    text-align: center;
    display: inline-block;
    content: "\f104";
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    speak: none;
}

	.nav-previous .prev:before {
    content: "\f105";
}
}

/* In-Post Navigation Mobile */ 
@media (max-width: 768px) {	.nav-previous .prev:before {
    content: "\f105";
}

	.post-navigation .nav-next .next:before {
	content: "\f104";
	}
}

need any colorable PREVIOUS-NEXT navigation with arrow

The first block is PHP function so needs to be added with one of these methods:
Adding PHP: https://docs.generatepress.com/article/adding-php/