@mixin is-active {
    .#{$state-is-prefix}active > &,
    .#{$state-is-prefix}active > li > &,
    &.#{$state-is-prefix}active,
    &.#{$state-is-prefix}active:hover { @content; }
}

@mixin is-active-parent {
    .#{$state-is-prefix}active & { @content; }
}

@mixin is-disabled {
    .#{$state-is-prefix}disabled > &,
    .#{$state-is-prefix}disabled > li > &,
    &.#{$state-is-prefix}disabled,
    &.#{$state-is-prefix}disabled:hover,
    &[disabled],
    &[disabled]:hover { @content; }
}

@mixin is-info {
    &.#{$state-is-prefix}info { @content; }
}

@mixin is-error {
    &.#{$state-is-prefix}error { @content; }
}

@mixin is-warning {
    &.#{$state-is-prefix}warning { @content; }
}

@mixin is-success {
    &.#{$state-is-prefix}success { @content; }
}