我无法让我的 <img> 标签在我的网格内居中

Question

我正在尝试从头开始编写我的第一个网站，但我发现自己在最后一天陷入了这个问题。我正在尝试将我的移动视图的徽标居中。我将它们正确放置在我的@media 标签中，并且它们显示在网格内，但是经过无数次尝试后，我无法将它们置于网格列的中心。如果我的代码有任何混乱，我深表歉意。

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="/styles.css">
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Prata">
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Inter">
    <title>Developer Portfolio</title>
</head>
<body>
    <nav>
    <div class="logo">
        <h3>
            <a href="/">Johnathan Specter</a>
        </h3>
    </div>
        <div class="nav-list">
            <ul>
                <li><a href="#">Articles</a></li>
                <li><a href="#">Chats</a></li>
                <li><a href="#">Awards</a></li>
                <li><a href="#">About</a></li>
                <button class="nav-button">Get in touch</button>
            </ul>
        </div>
    </nav>
    <div class="mob-menu">
        <img src="/Assets/Hamburger Menu.svg" class="hamburger-icon">
        <ul class="mobile-menu">
            <li><a href="#">Articles</a></li>
            <li><a href="#">Chats</a></li>
            <li><a href="#">Awards</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">Get in touch</a></li>
        </ul>
    </div>
    <section class="top">
        <div class="top-container">
            <div class="column-left">
                <h1 class="sub-heading">Helping companies build better, scalable software.</h1>
                <p>Award-winning web developer and author with over 15+ years of working experience with Fortune 500 companies like Apple, Google, Facebook, and more.</p>
            </div>
        </div>
    </section>
    <section class="logos">
        <div class="company-logos">
            <img src="/Assets/Logos/Walmart.svg" alt="Walmart logo" class="walmart-logo">
            <img src="/Assets/Logos/JP Morgan.svg" alt="JP Morgan logo">
            <img src="/Assets/Logos/Visa.svg" alt="Visa logo">
            <img src="/Assets/Logos/Tinder.svg" alt="Tinder logo">
            <img src="/Assets/Logos/Samsung.svg" alt="Samsung logo">
            <img src="/Assets/Logos/Verizon.svg" alt="Verizon logo">
        </div>
    </section>
    <section>
        <div class="previews">
            <div class="spense">
                <img src="/Assets/Spense.png" alt="preview of spense.com website" class="spense-img">
                <h2 class="spense-heading">Spense.com</h2>
                <p>Rethinking the way writers get paid, an open-source platform designed to help writers focus more on writing, and less on when and how they'll get paid. Project in collaboration with Codewell.cc</p>
            </div>
            <div class="yelp">
                <img src="/Assets/YelpCamp.png" alt="preview of yelpcamp.com website" class="yelp-img">
                <h2 class="yelp-heading">YelpCamp.com</h2>
                <p>Allowing backpack travelers to perfectly plan their trip through and open-source platform similar to TripAdvisor. With over 1m MAU, YelpCamp has been the crowd's favourite in 2021.</p>
            </div>
        </div>
    </section>
    <section>
        <div class="blurb">
            <div class="blurb1">
                <h1 class="blurb1-heading">A co-founder at one of the world's largest communities.</h1>
                <p>The combined experience I have working at the top Fortune 500 companies has allowed me to developer a skillset that helps me in not just development, but in every aspect of any business.</p>
                <p>I'm proud to announce that I am now working at one of the world's largest communities teaching young minds about how to sell yourself as a developer and open them to a whole new world of opportunities.</p>
            </div>
            <div class="blurb2">
                <p>As a developer, you have everything available to you and all that's holding you back is yourself.</p>
                <p>A quote I live by perfectly illustrates what I mean.</p>
                <p>"How big would you dream, if you knew you wouldn't fail?" You've already gone through the hardest parts being a developer, it's time to elevate your skills and become a leader, in something you're passionate about.</p>
                <p>I'm happy to chat over coffee some time about how I can help your company.</p>
            </div>
        </div>
    </section>
    <section>
        <div class="interested">
            <div class="interested1">
                <h1>Intersted in working with me?</h1>
                <p>I'm active on all social media platforms listed below, but you, can also me an email and I will get back to you within 24-48, hours.</p>
                <button class="git-button">Get in touch</button>
            </div>
            <div class="interested2">
            </div>
        </div>
    </section>
</body>
</html>

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: black;
}

nav {
    display: flex;
    flex-wrap: wrap;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Prata';
    color: #ffffff;
    font-size: 110%;
}

.logo a {
    text-decoration: none;
    font-family: 'Prata';
    color: #ffffff;
}

.logo:hover {
    transform: scale(1.1);
    transition: 0.3s;
}

.nav-list {
    flex: 1;
    text-align: center;
}

.nav-list li {
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative;
}

.nav-list li:hover {
    transform: scale(1.1);
    transition: 0.3s;
}

.nav-list li a {
    color: #939495;
    text-decoration: none;
    font-family: 'Inter';
}

.nav-button {
    background-color: #fbe850;
    color: #000000;
    float: right;
    padding: 15px 30px;
    font-family: 'Prata';
}

.nav-button:hover {
    transform: scale(1.1);
    transition: 0.3s;
}

.company-logos {
    display: flex;
    flex-wrap: wrap;
    flex-basis: 100%;
    padding: 2% 6%;
    justify-content: space-between;
}

h1 {
    font-family: 'Prata';
    color: #ffffff;
}

p {
    font-family: 'Inter';
    color: #939495;
}

.top-container {
    display: flex;
    width: 50%;
    padding: 2% 6%;
}

.sub-heading {
    font-size: 250%;
}

.previews {
    display: flex;
    padding: 2% 6%;
    gap: 1rem;
}

.previews > * {
    flex-basis: 100%;
}

.spense-heading {
    font-family: 'Prata';
    color: #ffffff;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.spense p {
    color: #939495;
}

.spense-img {
    height: auto;
    max-width: 100%;
}

.yelp-img {
    height: auto;
    max-width: 100%;
}

.yelp-heading {
    font-family: 'Prata';
    color: #ffffff;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.yelp p {
    color: #939495;
}

.blurb {
    display: flex;
    padding: 2% 6%;
    gap: 1rem;
    background-color: #2e3038;
}

.blurb1 h1 {
    margin-bottom: 1rem;
    color: #ffffff;
}

.blurb1 p {
    margin-bottom: 1rem;
    color: #939495;
}

.blurb2 p {
    margin-top: 0.5rem;
    margin-bottom: 1rem;
    color: #939495;
}

.interested {
    display: flex;
    padding: 2% 6%;
    gap: 1rem;
}

.interested h1 {
    margin-bottom: 1rem;
}

.interested1 p {
    margin-bottom: 1rem;
    margin-right: 1rem;
}

.interested1 {
    flex-basis: 50%;
}

.git-button {
    background-color: #fbe850;
    color: #000000;
    padding: 15px 30px;
    font-family: 'Prata';
}

.git-button:hover {
    transform: scale(1.1);
    transition: 0.3s;
}

.hamburger-icon {
    margin: auto 0;
    display: none;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 50px;
    left: 0;
    height: calc(100vh - 50px);
    width: 100%;
}

.open .mobile-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

@media (max-width: 500px) {
    .top-container {
        width: 100%;
        margin-bottom: 3rem;
    }

    .previews {
        display: block;
    }

    .blurb {
        display: block;
    }

    .blurb1 {
        margin-bottom: 3rem;
    }

    .interested {
        display: block;
        max-width: 80%;
    }
}

@media (max-width: 750px) {
    .nav-list {
        display: none;
    }

    .hamburger-icon {
        display:inline-block
    }
}

@media (max-width: 800px) {
    .company-logos {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        align-items: center;
        justify-content: center;
    }
}

我已经进行了大量的谷歌搜索，据我所知，这应该不是一个很难解决的问题，我只能假设我有一些东西覆盖了我的代码，阻止我将图像居中。

Answer 1

.company-logos img {
  justify-self: center;
}

会的。

另一个选项：

.company-logos img {
  margin: 0 auto;
}

注意：您可能没有意识到，但您已将除图像之外的所有内容都发布在您的系统上，因为它们是相对的。您应该用一些随机图像 url 或一些图像占位符替换 src（例如：https://via.placeholder.com/150）

工作示例：

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: black;
}

.company-logos {
  display: flex;
  flex-wrap: wrap;
  flex-basis: 100%;
  padding: 2% 6%;
  justify-content: space-between;
}

@media(max-width: 1050px) {
  .company-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 800px) {
  .company-logos {
    grid-template-columns: repeat(2, 1fr);
  }
}

.company-logos img {
  justify-self: center;
}

    <section class="logos">
        <div class="company-logos">
            <img src="https://via.placeholder.com/150" alt="Walmart logo" class="walmart-logo">
            <img src="https://via.placeholder.com/150" alt="JP Morgan logo">
            <img src="https://via.placeholder.com/150" alt="Visa logo">
            <img src="https://via.placeholder.com/150" alt="Tinder logo">
            <img src="https://via.placeholder.com/150" alt="Samsung logo">
            <img src="https://via.placeholder.com/150" alt="Verizon logo">
        </div>
    </section>

注意：我删除了所有与问题无关的代码。

我无法让我的 <img> 标签在我的网格内居中

I can't get my <img> tags to center inside of my grid

html

css

grid

center

flexbox