.imitate-message-root {
    position: fixed;
    top: 0px;
    z-index: 1000;
    left: 50%;
    margin: 0;
    padding: 0;
    transform: translateX(-50%);
    .imitate-message-item {
        padding: 10px 15px;
        margin: 15px auto 0 auto;
        box-sizing: border-box;
        width: fit-content;
        position: relative;
        box-shadow: 0px 0px 20px rgba(0,0,0,.2);
        display: flex;
        align-items: center;
        &.imitate-message-In {
            animation-name: slidein;
            transform: translateY(5px);
            animation-duration: 0.4s;
        }
        &.imitate-message-Out {
            animation-name: slideout;
            animation-duration: 0.3s;
            animation-fill-mode: forwards;
            transition: all .4s;
            height: 0;
            padding: 0;
            margin: 0 auto;
            border-width: 0px;
        }
    }
    .imitate-message-icon {
        display: inline-block;
        font-size: 0;
        margin-right: 10px;
        img {
            width: 16px;
        }
    }
    .imitate-message-content {
        color: black;
        font-size: 14px;
        display: inline-block;
    }
}

@keyframes slidein {
    from {
      transform: translateY(0); 
      opacity:0;
    }
  
    to {
      transform: translateY(5px);
      opacity: 1;
    }
  }

  @keyframes slideout {
    from {
        transform: translateY(5px);
        opacity: 1;
    }
  
    to {
        transform: translateY(0);
        opacity:0;
    }
  }