An SCSS version of Zac Stewart's Meow CSS

meow.scss

.meows {
  position: fixed;
  top: 0;
  right: 0;
}

.meow {
  margin: 20px 20px 0 0;
  position: relative;

  .inner {
    background: #191919;
    zoom: 1;
    filter: alpha(opacity = 75);
    background: rgba(25, 25, 25, .75);
    border: 2px solid transparent;
    -moz-border-radius: 10px;
    -webket-border-radius: 10px;
    -khtml-border-radius: 10px;
    -o-border-radius: 10px;
    border-radius: 10px;
    -moz-box-shadow: 2px 2px 10px rgba(25, 25, 25, .25);
    -webkit-box-shadow: 2px 2px 10px rgba(25, 25, 25, .25);
    -khtml-box-shadow: 2px 2px 10px rgba(25, 25, 25, .25);
    -o-box-shadow: 2px 2px 10px rgba(25, 25, 25, .25);
    box-shadow: 2px 2px 10px rgba(25, 25, 25, .25);
    color: #fff;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 15px;
    padding: 10px;
    text-shadow: 1px 1px 3px #000;
    width: 300px;
    min-height: 48px;

    &:after {
      content: "\0200";
      display: block;
      clear: both;
      visibility: hidden;
      line-height: 0;
      height: 0;
    }

    h1 {
      font-size: 14px;
      font-weight: bold;
      margin: 0;
      padding: 0;
      line-height: 1;
    }

    .close {
      display: none;
    }

    .icon {
      width: 48px;
      height: 48px;
      float: left;
      margin-right: 6px;

      img {
        max-width: 48px;
        max-height: 48px;
      }
    }
  }

  &:hover {
    .inner {
      border: 2px solid #fff;

      .close {
        background: #191919;
        zoom: 1;
        filter: alpha(opacity = 75);
        background: rgba(25, 25, 25, .75);
        border: 2px solid #ffffff;
        -khtml-border-radius: 18px;
        -moz-border-radius: 18px;
        -o-border-radius: 18px;
        -webket-border-radius: 18px;
        border-radius: 18px;
        color: #ffffff;
        display: block;
        font-size: 22px;
        font-weight: 500;
        height: 18px;
        left: 4px;
        line-height: 14px;
        position: absolute;
        text-align: center;
        text-decoration: none;
        top: 4px;
        width: 18px;
      }
    }
  }
}