/*添加按钮*/
.cnblogs-markdown pre {
  position: relative;
}
.cnblogs-markdown pre > span {
  position: absolute;
  top: 0;
  right: 0;
  border-radius: 2px;
  padding: 0 10px;
  font-size: 12px;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  cursor: pointer;
  display:none;
}
.cnblogs-markdown pre:hover > span {
  display:block;
}
.cnblogs-markdown pre > .copyed {
  background: #67c23a;
}

.container {
      width: 120px;
      height: 120px;
      margin: 20px;
      position: fixed;
      z-index: 999;
      float: right;
      top: 100px;
      right: 40px;
      transform: rotateY(15deg) rotateX(-15deg);
      transform-style: preserve-3d;
      animation: xuanzhuan 16s linear infinite;
      display: none;
    }

    @keyframes xuanzhuan {
      0% {
        transform: rotateY(15deg) rotateX(45deg);
      }
      50% {
        transform: rotateY(375deg) rotateX(-45deg);
      }
      100% {
        transform: rotateY(735deg) rotateX(45deg);
      }
    }

    .container div.front {
      background: white;
      transform: translateZ(60px);
    }

    .container div.back {
      background: white;
      transform: translateZ(-60px) rotateY(180deg);
    }

    .container div.left {
      background: white;
      transform: translateX(-60px) rotateY(-90deg);
    }

    .container div.right {
      background: white;
      transform: translateX(60px) rotateY(90deg);
    }

    .container div.top {
      background: white;
      transform: translateY(-60px) rotateX(90deg);
    }

    .container div.bottom {
      background: white;
      transform: translateY(60px) rotateX(-90deg);
    }

    .container div {
      position: absolute;
      left: 0;
      top: 0;
      width: 120px;
      height: 120px;
      line-height: 120px;
      text-align: center;
      font-size: 40px;
    }

    .container .pic {
      width: 120px;
      height: 120px;
    }