// Stacked

.#{$fi-css-prefix}-stack {
  position: relative;
  z-index: 1;
  display: inline-block;
  width: 2.2em;
  height: 2.2em;
  line-height: 2.2em;
  vertical-align: middle;
    &.ellipse:after{content: "\ea0c";}
    &.curve:after{content: "\ea0b";}
    &.rectangle:after{content: "\ea0d";}
    &:after{
        position: absolute;
        z-index: -1;
        left: 0;
        width: 100%;
        text-align: center;
        font-size: 2.2em;
    }
    &:before{
        position: absolute;
        left: 0;
        width: 100%;
        text-align: center;
        line-height: inherit;
        color: $fi-font-color-inverse;
    }
}