@default-base-font-family: "Helvetica Neue", Arial, sans-serif;
@default-heading-font-family: "Helvetica Neue", Arial, "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
@default-code-font-family: Monaco, Consolas, monospace;

.font-family(base) {
    font-family: @default-base-font-family;
}

.font-family(heading) {
    font-family: @default-heading-font-family;
}

.font-family(code) {
    font-family: @default-code-font-family;
}

.centered-line(@height) {
    height: @height;
    line-height: @height;
}

.clearfix() {
    &:before,
    &:after {
        display: table;
        content: "";
    }
    &:after {
        clear: both;
    }
}

.ellipsis() {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.size(@size) {
    width: @size;
    height: @size;
}

.size(@wdith, @height) {
    width: @wdith;
    height: @height;
}

.deprecate(@name) {
    @v: ~`(() => console.warn('mixin @{name} called from ' + this.v.value.parent._fileInfo.filename + ' will be deprecated.'))()`;
}

.absolute(@top) {
    .deprecate(absolute);
    position: absolute;
    top: @top;
}

.align-items(@align) {
    .deprecate(align-items);
    align-items: @align;
}

.box-sizing(@boxmodel) {
    .deprecate(box-sizing);
    box-sizing: @boxmodel;
}

.display(@value) {
    .deprecate(display);
    display: @value;
}

.inline-block() {
    .deprecate(inline-block);
    display: inline-block;
}

.justify-content(@align) {
    .deprecate(justify-content);
    justify-content: @align;
}

.rotate(@angle) {
    .deprecate(rotate);
    transform: rotate(@arguments);
}

.transform(...) {
    .deprecate(transform);
    transform: @arguments;
}

.transition(@transition, ...) {
    .deprecate(transition);
    @transitions: ~`(function() { var args = "@{arguments}".replace(/[[\]]/g, ""); if(!args.match(/[^,]\s+[^,]/)) { args = args.replace(/,(?=[^()]*\))/g, "%est%").replace(/,/g, "").replace(/%est%/g, ","); } return args;})()`;
    transition: @transitions;
}