// 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;
    }
}