icinga-php-library/asset/css/balls.less

@ball-pad: 1/6em;

.ball {
  border-radius: 50%;
  display: inline-block;
  text-align: center;
}

.ball-size-xs {
  height: 1/3em;
  width: 1/3em;
}

.ball-size-s {
  height: 0.5em;
  width: 0.5em;
}

.ball-size-m {
  height: 0.75em;
  width: 0.75em;
  line-height: 0;

  i.icon:before {
    font-size: .75 - @ball-pad * 2;
    line-height: 1em;
  }
}

.ball-size-ml {
  height: 1em;
  width: 1em;
  line-height: 0;

  i.icon {
    line-height: 0.3;

    &:before {
      font-size: 0.8 - @ball-pad * 2;
      line-height: 1 - @ball-pad * 2;
    }
  }
}

.ball-size-l {
  height: 1.5em;
  width: 1.5em;
  line-height: 1em;

  i.icon:before {
    font-size: 1 - @ball-pad * 2;
    line-height: 1.5 - @ball-pad * 2;
  }
}

.ball-size-xl {
  width: 2em;
  height: 2em;

  i.icon:before {
    line-height: 2 - @ball-pad * 2;
  }
}

.ball-outline(@color) {
  border: @ball-pad solid @color;
}

.ball-solid(@color) {
  background-color: @color;
  color: var(--default-text-color-inverted, @default-text-color-inverted);
  padding: @ball-pad;
}

.state-ball {
  .ball();

  &.state-pending:not(.ball-size-l):not(.ball-size-xl) {
    .ball-solid(var(--state-pending, @state-pending));
  }

  &.state-pending.ball-size-l,
  &.state-pending.ball-size-xl {
    .ball-outline(var(--state-pending, @state-pending));
  }

  &.state-up:not(.ball-size-l):not(.ball-size-xl) {
    .ball-solid(var(--state-up, @state-up));
  }

  &.state-up.ball-size-l,
  &.state-up.ball-size-xl {
    .ball-outline(var(--state-up, @state-up));
  }

  &.state-down {
    .ball-solid(var(--state-down, @state-down));
  }

  &.state-ok:not(.ball-size-l):not(.ball-size-xl) {
    .ball-solid(var(--state-ok, @state-ok));
  }

  &.state-ok.ball-size-l,
  &.state-ok.ball-size-xl {
    .ball-outline(var(--state-ok, @state-ok));
  }

  &.state-warning {
    .ball-solid(var(--state-warning, @state-warning));
  }

  &.state-critical {
    .ball-solid(var(--state-critical, @state-critical));
  }

  &.state-unknown {
    .ball-solid(var(--state-unknown, @state-unknown));
  }

  &.handled {
    opacity: 0.6;
  }

  i.icon {
    text-align: center;
    display: block;

    &::before {
      margin-right: 0;
    }
  }

  // Specific icon styles
  &.ball-size-l i {
    &.fa-sitemap:before {
      font-size: 8px; // px to ignore browser min font-size
    }
  }

  &.ball-size-xl i {
    &.fa-sitemap:before {
      font-size: .857em;
      line-height: (2 - @ball-pad * 2) / .857;
    }
  }
}