链接在div中不起作用

<div style="display: inline;">
    <a href="https://www.example.com">链接</a>
</div>

<div>
    <span><a href="https://www.example.com">链接</a></span>
</div>

<style>
    .link-container a {
        color: blue;
        text-decoration: underline;
    }
</style>

<div class="link-container">
    <a href="https://www.example.com">链接</a>
</div>