css 网站页面内容占位加载动画效果的实现

阐述

内容占位动画效果，这个也是我们经常在一些网站上看到的效果，这种效果的设计，可以提升用户体验，降低用户等待焦虑的情绪。

下面我们一起来看看一下今天练习的最终效果：

index.html

DOCTYPE html>


	
	
	
	网站页面内容占位加载动画效果的实现
	


	

	 

	
		
			 
		
		
			 
			 
			 
			 
		
		
			 
			
				 
				 
			
		
	

index.js

const header = document.getElementById('header')
const title = document.getElementById('title')
const excerpt = document.getElementById('excerpt')
const profile_img = document.getElementById('profile_img')
const name = document.getElementById('name')
const date = document.getElementById('date')

const animated_bgs = document.querySelectorAll('.animated-bg')
const animated_bg_texts = document.querySelectorAll('.animated-bg-text')

setTimeout(getData, 1500)

function getData() {
	header.innerHTML =
		''
	title.innerHTML = 'web 前端 css 特效'
	excerpt.innerHTML =
		'一个专注web开发技术学习博客 https://wgchen.blog.csdn.net -------- 别站在烦恼里仰望幸福！'
	profile_img.innerHTML =
		''
	name.innerHTML = '前端开发'
	date.innerHTML = '2022年8月9日'

	animated_bgs.forEach((bg) => bg.classList.remove('animated-bg'))
	animated_bg_texts.forEach((bg) => bg.classList.remove('animated-bg-text'))
}

index.css

* {
  box-sizing: border-box;
}

body {
  background-color: #ecf0f1;
  font-family: 'Roboto', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

img {
  max-width: 100%;
}

.card {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
  width: 350px;
}

.card-header {
  height: 200px;
}

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

.card-content {
  background-color: #fff;
  padding: 30px;
}

.card-title {
  height: 20px;
  margin: 0;
}

.card-excerpt {
  color: #777;
  margin: 10px 0 20px;
}

.author {
  display: flex;
}

.profile-img {
  border-radius: 50%;
  overflow: hidden;
  height: 40px;
  width: 40px;
}

.author-info {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  margin-left: 10px;
  width: 100px;
}

.author-info small {
  color: #aaa;
  margin-top: 5px;
}

.animated-bg {
  background-image: linear-gradient(
    to right,
    #f6f7f8 0%,
    #edeef1 10%,
    #f6f7f8 20%,
    #f6f7f8 100%
  );
  background-size: 200% 100%;
  animation: bgPos 1s linear infinite;
}

.animated-bg-text {
  border-radius: 50px;
  display: inline-block;
  margin: 0;
  height: 10px;
  width: 100%;
}

@keyframes bgPos {
  0% {
    background-position: 50% 0;
  }

  100% {
    background-position: -150% 0;
  }
}