css网页制作代码

CSS 网页制作基础代码示例

以下是一些常见的 CSS 代码片段，可用于网页制作：

全局样式重置

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial', sans-serif;
}

响应式布局容器

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

导航栏样式

.navbar {
  background-color: #333;
  color: white;
  padding: 1rem;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-item a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}

.nav-item a:hover {
  color: #ddd;
}

按钮样式

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #0056b3;
}

卡片组件

.card {
  border: 1px solid #ddd;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 1rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card-text {
  color: #666;
}

响应式网格布局

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

@media (max-width: 768px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

表单样式

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.form-input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0,123,255,0.25);
}

动画效果

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

弹性盒子居中

.center-flex {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

这些代码片段可以组合使用来构建完整的网页布局和样式。根据具体需求，可以调整颜色、间距、尺寸等参数。