SOURCE

console 命令行工具 X clear

                    
>
console
function banner() {
  var itemList = document.getElementsByClassName('item');

  for (var i = 0; i < itemList.length; i++) {
    var str = 'https://api.imalan.cn/random/?c=unsplash&s=large&r=img?t=' + Math.random() * 20;
    itemList[i].style.backgroundImage = "url(" + str + ")";

  }
}
//https://www.jb51.net/article/47886.htm
<!doctype html>
<html>
  
  <head>
    <title>
      冰水鉴心
    </title>
    <meta charset="utf-8">
    <meta name="keywords" content="冰水鉴心 - 我菜死了">
    <meta name="description" content="冰水鉴心 - 我菜死了">
    <link rel="shortcut icon" href="https://pictures-1257961856.cos.ap-shanghai.myqcloud.com/logo/Logo-B%401.5x.png">
    <link type="text/css" rel="stylesheet" href="./src/css/main.css">
    <link type="text/css" rel="stylesheet" href="./src/css/my.css">
  </head>
  
  <body onload="banner()">
    <div class="mask">
    </div>
    <div id="bg" class="blur">
    </div>
    <header>
      <div class="header-logo">
        <a id="logo" class="logo" href="./index.html">
          <img src="https://pictures-1257961856.cos.ap-shanghai.myqcloud.com/logo/Logo-W%401.5x.png"
          width="30px" height="30px">
          <p>
            冰水鉴心
          </p>
        </a>
        <ul>
          <li>
            <a id="home" href="#">
              <p>
                首页
              </p>
            </a>
          </li>
          <li>
            <a id="other" href="#">
              <p>
                其他
              </p>
            </a>
          </li>
          <li>
            <a id="about" href="#">
              <p>
                关于
              </p>
            </a>
          </li>
        </ul>
      </div>
    </header>
    <div class="container">
      <div class="item-list">
        <div class="item">
          <a href="./blog/2019/1.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/2.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/3.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/4.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/5.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/6.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/7.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/8.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/9.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
        <div class="item">
          <a href="./blog/2019/10.html">
            <h2>
              标题
            </h2>
            <h3>
              描述
            </h3>
          </a>
        </div>
      </div>
      <footer>
        <div class="footer">
          <p>
            没有备案萌萌哒|
          </p>
          <a class="" href="#">
            我很菜的
          </a>
        </div>
      </footer>
    </div>
    <script src="./src/js/main.js">
    </script>
  </body>

</html>
* {
  margin: 0px;
  font-size: 20px;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  color: #eeeeee;
}

html {
  margin: 0px;
}

h1 {
  font-size: 28px;
  margin: 5px;
}

h2 {
  font-size: 24px;
  margin: 5px;
}

h3 {
  font-size: 18px;
  margin: 5px;
}

h4 {
  font-size: 14px;
  margin: 5px;
}

h5 {
  font-size: 10px;
  margin: 5px;
}

p {
  font-size: 16px;
  margin-left: 10px;
  display: inline;
}

a {
  text-decoration: none;
}

body #logo img {
  margin-right: 10px;
}

a.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.header-logo {
  margin: 10px, 5px;
}

#logo,
#home,
#other,
#about {
  font-weight: normal;
  line-height: 32px;
  padding: 8px;
  border-radius: 4px;
  background-color: transparent;
  text-decoration: none;
  white-space: nowrap;
}

header {
  position: fixed;
  width: 100%;
  background-color: rgba(20, 20, 20, 0);
  z-index: 10;
}

div.header-logo a {
  float: left;
  align-items: center;
}

div.header-logo ul {
  display: flex;
  flex-direction: row;
  list-style-type: none;
  padding-inline-start: 0px;
  float: right;
  align-items: center;
  margin-right: 10px;
}

div.header-logo ul li a {
  text-decoration: none;
}

#bg {
  display: flexbox;
  width: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-image: url("https://api.imalan.cn/random/?c=unsplash&s=large&r=img");
}

.mask {
  background-color: rgba(20, 20, 20, 0.6);
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.blur {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  zoom: 1;
  padding: 5px;
  box-sizing: border-box;
  background-repeat: no-repeat;
  background-size: cover;
  -webkit-background-size: cover;
  -o-background-size: cover;
  background-position: center 0;
  z-index: -2;
}

.blur:after {
  content: "";
  width: 100%;
  height: 100%;
  position: fixed;
  left: 0;
  top: 0;
  margin: 0px auto;
  background: inherit;
  filter: blur(5px);
  z-index: -2;
}

.container {
  position: fixed;
  width: 100%;
  height: 100%;
  margin: 0px 0px;
  text-align: center;
  overflow: auto;
  z-index: 2;
}

.container::-webkit-scrollbar {
  width: 0 !important
}

.item-list {
  display: flex;
  flex-direction: column;
  padding: 20px 60px;
  margin: 10px auto;
  max-width: 900px;
}

.item-list:first-child {
  margin-top: 50px;
}

.item {
  display: flex;
  width: 100%;
  height: 200px;
  border-radius: 10px;
  margin: 20px auto;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center 0;
  justify-content: center;
  transition: .2s;
  flex-direction: column;
}

.item:hover {
  transform: scale(1.02);
}

.item a,
p {
  text-align: center;
  margin: auto 0px;
  color: #eeeeee;
}

.item a {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 200px;
  border-radius: 10px;
  background-color: rgba(20, 20, 20, 0.2);
}

.footer {
  display: flex;
  justify-content: center;
  flex-direction: row;
  position: relative;
  bottom: 0px;
  left: 0px;
  background-color: rgba(20, 20, 20, 0);
  z-index: 10;
  text-align: center;
}

.footer a {
  margin: 10px 0px;
  font-size: 16px;
}

@media (max-width:600px) {
  .item-list {
    padding: 20px 10px;
  }
}

@media (max-width:300px) {
  .item {
    height: 100px;
    margin: 5px auto;
  }
}