@define-mixin image-alt-size $name, $size {
  @media (min-width: $size) {
    img[alt="$(name)"] {
      max-height: $size !important;
      max-width: $size !important;
    }
  }
}

@define-mixin transform-n-animation $type, $dur, $delta {
  transform: $(delta);
  animation: $(type) $(dur) ease-in-out;
}

@define-mixin even-odd-type $classname, $type {
  .$(classname):nth-child(odd).$(type),
  .$(classname):nth-child(odd) .$(type) {
    background: var(--$(type)-even-color);
  }

  .$(classname):nth-child(even).$(type),
  .$(classname):nth-child(even) .$(type) {
    background: var(--$(type)-even-color);
  }

  .$(classname):nth-child(even) .$(classname):nth-child(odd).$(type),
  .$(classname):nth-child(even) .$(classname):nth-child(odd) .$(type) {
    background: var(--$(type)-even-color);
  }
}

@define-mixin even-odd $classname {
  .$(classname):nth-child(odd) {
    background: var(--background-odd-color);
  }

  .$(classname):nth-child(even) {
    background: var(--background-even-color);
  }

  @mixin even-odd-type $classname, success;
  @mixin even-odd-type $classname, warning;
  @mixin even-odd-type $classname, danger;
}

@define-mixin even-odd-element $el {
  $(el):nth-child(odd) {
    background: var(--background-odd-color);
  }

  $(el):nth-child(even) {
    background: var(--background-even-color);
  }

  @mixin even-odd-type $el, success;
  @mixin even-odd-type $el, warning;
  @mixin even-odd-type $el, danger;
}

@define-mixin number-wrap $color {
  display: inline-flex;
  padding: 0 6px;
  margin-left: 6px;
  line-height: inherit;
  font-size: 16px;
  text-align: center;
  background: $(color);
}

/* 16x16 checkerboard */
@define-mixin img-checkerboard-background {
  img {
    background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAQAAAC1+jfqAAAAGUlEQVR42mP474AKGdDhCFGALoChYWQoAACpW7+B5lv5BwAAAABJRU5ErkJggg==");
  }
}