我分析了所有这些和其他代码，这些代码也存在于你的github帐户上。只有一行代码丢失了：

<!--footer-->
<aside> 
        <footer> 
      <ul class="social-media"> 
        <li><a href="https://www.linkedin.com/in/vicdearanzeta" target="_blank"><img src="Logo/mdi_linkedin.svg" width="32px" height="32px" class="linkedin" alt="linkedin"></a></li>
        <li><a href="https://github.com/vdaranze" target="_blank"><img src="Logo/mdi_github.svg" width="32px" height="32px" class="github" alt="github"></a></li>
        <li><a href="https://www.artstation.com/vicdearanzeta" target="_blank"><img src="Logo/mdi_artstation.svg" width="32px" height="32px" class="artstation" alt="artstation"></a></li>
      </ul>
   <p class="copyright">&copy;2023 Vic de Aranzeta</p>
</footer>
</aside>

在html文件中，我只是在ul class ="social-media"中添加了一个类，然后我在上面应用了CSS。在CSS文件中添加的代码如下：

.social-media{
    display: flex;
    /* border: 5px solid white; */
    justify-content: center;
}

这将解决您的图标对齐问题。

.copyright{
    text-align: center;
}

如果你想让这行代码（写在下面）以图标为中心，你也可以添加这行代码。

enter code here
<p class="copyright">&copy;2023 Vic de Aranzeta</p>

• • 最终结果图片：**

罪魁祸首是填充物。用户代理样式表（也称为浏览器默认样式表）包括ul的padding-inline-start: 40px声明
另外，不要忘记使用list-style-type: none删除列表标记

.hero_text ul {
  display: flex;
  padding: 0;
  list-style-type: none;
}

<div class="hero_text">
    <p class="name">Kaixo! I'm Vic de Aranzeta. </p>
    <p> A Design Anthropologist, User Experience Designer, Photographer, and Illustrator based in <s>sunny</s> foggy San Francisco.
    I'm a Principal Product Designer by day - Outside of work you can find me snapping photos on my Fujifilm X-T30II, playing video games, or reading a book.
Check out my <u><a href="https://www.vicdearanzeta.com" class="link">design portfolio</a></u> to see more work. This website is to practice front-end web development.</p>
   <ul> 
    <li><a href="https://www.linkedin.com/in/vicdearanzeta" target="_blank"><img src="Logo/mdi_linkedin.svg" width="32px" height="32px" class="linkedin" alt="linkedin"></a></li>
    <li><a href="https://github.com/vdaranze" target="_blank"><img src="Logo/mdi_github.svg" width="32px" height="32px" class="github" alt="github"></a></li>
    <li><a href="https://www.artstation.com/vicdearanzeta" target="_blank"><img src="Logo/mdi_artstation.svg" width="32px" height="32px" class="artstation" alt="artstation"></a></li>
  </ul>
</div>