src/Charcoal/Admin/Property/Input/ImageInput.php
public function setClassAttr($classes)
    {
        if (is_array($classes)) {
            $classes = implode(' ', $classes);
        }

        $this->classAttr = $classes;

        return $this;
    }
public function setClassAttr($classes)
    {
        if (is_array($classes)) {
            $classes = implode(' ', $classes);
        }

        $this->classAttr = $classes;

        return $this;
    }
public function setClassAttr ( $ classes ) { if ( is_array ( $ classes ) ) { $ classes = implode ( ' ' , $ classes ) ; } $ this -> classAttr = $ classes ; return $ this ; }
Set the CSS classes to apply on the image.

@param  string|string[] $classes A space-separated list of CSS classes.
@return ImageDisplay Chainable
Set the CSS classes to apply on the image .