2s 利用 HTML+css动画实现企业官网效果

<header>
        <div class="logo">LOGO</div>
        <nav>
            <ul>
                <li><a href="#home">首页</a></li>
                <li><a href="#about">关于我们</a></li>
                <li><a href="#services">服务</a></li>
                <li><a href="#news">新闻公告</a></li>
                <li><a href="#contact">联系我们</a></li>
            </ul>
        </nav>
    </header>
    <section id="home" class="banner">
        <h1>欢迎来到我们的公司</h1>
        <p>我们致力于提供最佳的服务。</p>
    </section>
    <section id="about">
        <div class="container">
            <h2>关于我们</h2>
            <p>我们公司成立于2000年，专注于提供高质量的产品和服务。我们的团队由经验丰富的专业人士组成，致力于为客户提供最佳解决方案。</p>
            <p>我们的使命是通过创新和卓越的服务，帮助客户实现他们的目标。</p>
        </div>
    </section>
    
    <section id="news">
        <div class="container">
            <h2>公司新闻和公告</h2>
            <div class="news-container">
                <article class="news-item">
                    <h3>新闻标题1</h3>
                    <img src="./img/1.png" alt="新闻图片1">
                    <p>这是新闻内容1的详细描述。</p>
                    <a href="#">阅读更多</a>
                </article>
                <article class="news-item">
                    <h3>新闻标题2</h3>
                    <img src="./img/2.png" alt="新闻图片2">
                    <p>这是新闻内容2的详细描述。</p>
                    <a href="#">阅读更多</a>
                </article>
                <article class="news-item">
                    <h3>新闻标题3</h3>
                    <img src="./img/3.png" alt="新闻图片3">
                    <p>这是新闻内容3的详细描述。</p>
                    <a href="#">阅读更多</a>
                </article>
            </div>
           
        </div>
    </section>
   
    <footer>
        <p>&copy; 2024 公司名. 保留所有权利.</p>
        <div class="social-media">
            <a href="#">微博</a>
            <a href="#">微信</a>
            <a href="#">领英</a>
        </div>
    </footer>

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
body {
    background-color: #f4f4f4;
    line-height: 1.6;
    padding: 0px;
}
header {
    background: #333;
    color: #fff;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideDown 1s ease-out;
}
.logo {
    font-size: 1.5em;
    font-weight: bold;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
nav a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}
nav a:hover {
    color: #ff6347;
}
.banner {
    background: url(https://images.unsplash.com/photo-1600585154340-be6161a56a0c) no-repeat center center / cover;
    color: #fff;
    text-align: center;
    padding: 150px 20px;
    animation: fadeIn 2s ease-in;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    animation: fadeIn 1s ease-in;
}
#about, #services, #contact {
    padding: 40px 20px;
    background: #fff;
    border-radius: 10px;
    margin-bottom: 20px;
}
h2 {
    margin-bottom: 20px;
}
.service-item {
    background: #f9f9f9;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-20px);
    animation: slideIn 0.5s forwards;
}
#news .news-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.news-item {
    flex: 1 1 calc(33.333% - 20px);
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}
.news-item:hover {
    transform: scale(1.05);
}
.news-item img {
    max-width: 100%;
    border-radius: 10px;
}
.news-item h3 {
    margin-top: 10px;
    margin-bottom: 10px;
}
.news-item p {
    margin-bottom: 10px;
}
.news-item a {
    color: #333;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}
.news-item a:hover {
    color: #ff6347;
}
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    border-radius: 10px;
    animation: slideUp 1s ease-in;
}
.social-media a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s;
}
.social-media a:hover {
    color: #ff6347;
}
/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}
@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}
@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}