1. Using the code, button size issue fixed in Firefox, still in Chrome the button is too short.
2. I have already set the icon in the editor, still it is not showing. See the screenshot http://goo.gl/B4fmIr
3. You still didn’t reply for the download button on file details page.
There is some more problem, I think the plugin is not compatible.
4. There is layout error in All File page in Admin area, see the screenshot http://goo.gl/2Fxc6d
5. In Admin All plugin area, I am getting this error at the bottom
Warning: array_shift() expects parameter 1 to be array, string given in /home/asdf/public_html/www.mywebsite.com/wp-content/plugins/download-manager/wpdm-core.php on line 528
Warning: Invalid argument supplied for foreach() in /home/asdf/public_html/www.mywebsite.com/wp-content/plugins/download-manager/wpdm-core.php on line 531