/// Makes an element's :before pseudoelement a FontAwesome icon. /// @param {string} $content Optional content value to use. /// @param {string} $where Optional pseudoelement to target (before or after). @mixin icon($content: false, $where: before) {

text-decoration: none;
&:#{$where} {
        @if $content {
                content: $content;
        }
        -moz-osx-font-smoothing: grayscale;
        -webkit-font-smoothing: antialiased;
        font-family: FontAwesome;
        font-style: normal;
        font-weight: normal;
        text-transform: none !important;
}

}

/// Applies padding to an element, taking the current element-margin value into account. /// @param {mixed} $tb Top/bottom padding. /// @param {mixed} $lr Left/right padding. /// @param {list} $pad Optional extra padding (in the following order top, right, bottom, left) /// @param {bool} $important If true, adds !important. @mixin padding($tb, $lr, $pad: (0,0,0,0), $important: null) {

@if $important {
        $important: '!important';
}
padding: ($tb + nth($pad,1)) ($lr + nth($pad,2)) max(0.1em, $tb - _size(element-margin) + nth($pad,3)) ($lr + nth($pad,4)) #{$important};

}

/// Encodes a SVG data URL so IE doesn't choke (via codepen.io/jakob-e/pen/YXXBrp). /// @param {string} $svg SVG data URL. /// @return {string} Encoded SVG data URL. @function svg-url($svg) {

$svg: str-replace($svg, '"', '\'');
$svg: str-replace($svg, '<', '%3C');
$svg: str-replace($svg, '>', '%3E');
$svg: str-replace($svg, '&', '%26');
$svg: str-replace($svg, '#', '%23');
$svg: str-replace($svg, '{', '%7B');
$svg: str-replace($svg, '}', '%7D');
$svg: str-replace($svg, ';', '%3B');
@return url("data:image/svg+xml;charset=utf8,#{$svg}");

}