How to create Back and forward url link

Back burrom click link

<a href="javascript:history.back()">❮</a>

Back buttom with color and size

<strong><span style="color: #424242; font-size: 10pt;"><a style="color: #424242;"href="javascript:history.back()">❮ Back</a></span></strong>

Back + if there is no history redirect my given URL (https://blogstour.com) buttom with color and size

<strong><span style="color: #424242; font-size: 15pt;">
    <a style="color: blue;" href="javascript:history.length > 1 ? history.back() : window.location.href = 'https://blogstour.com'">
        ❮ Back
    </a>
</span></strong>

Forward buttom

<a href="javascript:history.forward()">❯</a>