dev/scss/base/banner.scss

.banner {
  position: fixed;
  width: 10em;
  height: 10em;
  overflow: hidden;
  margin: 0;
  padding: 0;
  right: 0px;
  margin-right: -2.4em;
  top: 0;

  &::after {
    content:attr(data-note);
    display: block;
    overflow: hidden;
    width: 12em;
    font-size: 10pt;
    font-weight: bold;
    word-spacing: 2px;
    text-decoration: none;
    position: relative;
    left: 2em;
    top: -1.6em;
    line-height: 2em;
    text-align: center;  
    -moz-transform-origin: 0 0 ;
    -moz-transform:rotate(45deg);
    -webkit-transform-origin: 0 0 ;
    -webkit-transform:rotate(45deg);
    -ms-transform-origin: 0 0 ;
    -ms-transform:rotate(45deg);
    transform-origin: 0 0 ;
    transform:rotate(45deg);

    background-color: $light-orange;
    color: $dark-orange;
    border: 1px solid $dark-orange;
  }
}