修改配置文件

在hexo博客主题文件_config.yml中添加

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# 开启页面加载动画
preloader:
  enable: true

打开主题目录中 /layout/_partial /head.ejs文件，将 以下内容填入<head> 标签中。

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<link rel="stylesheet" type="text/css" href="<%- theme.jsDelivr.url %><%- url_for('/css/loading.css') %>">

打开主题目录 中/layout/layout.ejs文件，将 以下内容填入<body> 标签中。

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<%- partial('_widget/loading') %>

添加文件

在主题目录/layout/_widget下添加loading.ejs文件

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<% if (theme.preloader.enable) { %>
<div id="loading-box">
    <div class="loading-left-bg"></div>
    <div class="loading-right-bg"></div>
    <div class="spinner-box">
        <div class="configure-border-1">
            <div class="configure-core"></div>
        </div>
        <div class="configure-border-2">
            <div class="configure-core"></div>
        </div>
        <div class="loading-word">加载中...</div>
    </div>
</div>
<script>
    window.addEventListener('load', function(){
        document.body.style.overflow = 'auto';
        document.getElementById('loading-box').classList.add("loaded")
    }, false)
</script>
<% } %>

在主题目录/source/css下添加loading.css文件

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#loading-box .loading-left-bg,
#loading-box .loading-right-bg {
  position: fixed;
  z-index: 1000;
  width: 50%;
  height: 100%;
  background-color: #37474f;
  transition: all 0.5s;
}

#loading-box .loading-right-bg {
  right: 0;
}

#loading-box > .spinner-box {
  position: fixed;
  z-index: 1001;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
}

#loading-box .spinner-box .configure-border-1 {
  position: absolute;
  padding: 3px;
  width: 115px;
  height: 115px;
  background: #ffab91;
  animation: configure-clockwise 3s ease-in-out 0s infinite alternate;
}

#loading-box .spinner-box .configure-border-2 {
  left: -115px;
  padding: 3px;
  width: 115px;
  height: 115px;
  background: rgb(63, 249, 220);
  transform: rotate(45deg);
  animation: configure-xclockwise 3s ease-in-out 0s infinite alternate;
}

#loading-box .spinner-box .loading-word {
  position: absolute;
  color: #ffffff;
  font-size: 0.8rem;
}

#loading-box .spinner-box .configure-core {
  width: 100%;
  height: 100%;
  background-color: #37474f;
}

div.loaded div.loading-left-bg {
  transform: translate(-100%, 0);
}

div.loaded div.loading-right-bg {
  transform: translate(100%, 0);
}

div.loaded div.spinner-box {
  display: none !important; 
}

@keyframes configure-clockwise {
  0% {
    transform: rotate(0);
  }

  25% {
    transform: rotate(90deg);
  }

  50% {
    transform: rotate(180deg);
  }

  75% {
    transform: rotate(270deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes configure-xclockwise {
  0% {
    transform: rotate(45deg);
  }

  25% {
    transform: rotate(-45deg);
  }

  50% {
    transform: rotate(-135deg);
  }

  75% {
    transform: rotate(-225deg);
  }

  100% {
    transform: rotate(-315deg);
  }
}

部署

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hexo c
hexo g
hexo d

参考链接：https://www.jianshu.com/p/a81a629e2f9a