protected function prefixAlignContent( $value, $extra = null )
  {
    $prop = array(
        '-webkit-align-content',
        '-ms-flex-line-pack',
        'align-content'
    );

    $val[] = $value;
    switch( $value )
    {
      case 'flex-start':
        $val[] = 'start';
        break;
      case 'flex-end':
        $val[] = 'end';
        break;
      case 'space-between':
        $val[] = 'justify';
        break;
      case 'space-around':
        $val[] = 'distribute';
        break;
      default:
        $val[] = $value;
        break;
    }

    $val[] = $value;

    return $this->getPrefixRules( $prop, $val, $extra );
  }
protected function prefixAlignContent( $value, $extra = null )
  {
    $prop = array(
        '-webkit-align-content',
        '-ms-flex-line-pack',
        'align-content'
    );

    $val[] = $value;
    switch( $value )
    {
      case 'flex-start':
        $val[] = 'start';
        break;
      case 'flex-end':
        $val[] = 'end';
        break;
      case 'space-between':
        $val[] = 'justify';
        break;
      case 'space-around':
        $val[] = 'distribute';
        break;
      default:
        $val[] = $value;
        break;
    }

    $val[] = $value;

    return $this->getPrefixRules( $prop, $val, $extra );
  }
protected function prefixAlignContent ( $ value , $ extra = null ) { $ prop = array ( '-webkit-align-content' , '-ms-flex-line-pack' , 'align-content' ) ; $ val [ ] = $ value ; switch ( $ value ) { case 'flex-start' : $ val [ ] = 'start' ; break ; case 'flex-end' : $ val [ ] = 'end' ; break ; case 'space-between' : $ val [ ] = 'justify' ; break ; case 'space-around' : $ val [ ] = 'distribute' ; break ; default : $ val [ ] = $ value ; break ; } $ val [ ] = $ value ; return $ this -> getPrefixRules ( $ prop , $ val , $ extra ) ; }
Properly prefixes the 'align-content' property.

@param string  $value  The value of the property.
@param null    $extra  !important or null

@return array          The prefixed rules to replace the 'align-content' rule.
Properly prefixes the align - content property .