public function setBottom($bottom) {
    if (!$this->isSupportedUnit($bottom)) {
      $this->triggerError("Value \"${bottom}\" does not use a supported unit.");
    }
    else {
      $this->bottom = $bottom;
    }
    return $this;
  }
public function setBottom($bottom) {
    if (!$this->isSupportedUnit($bottom)) {
      $this->triggerError("Value \"${bottom}\" does not use a supported unit.");
    }
    else {
      $this->bottom = $bottom;
    }
    return $this;
  }
public function setBottom ( $ bottom ) { if ( ! $ this -> isSupportedUnit ( $ bottom ) ) { $ this -> triggerError ( "Value \"${bottom}\" does not use a supported unit." ) ; } else { $ this -> bottom = $ bottom ; } return $ this ; }
Setter for bottom.

@param mixed $bottom
Bottom.

@return $this
Setter for bottom .