Quiz won't display

Quiz and Survey Master v4.7.0 running on WP v4.5.1 using Alpha theme.
Installed QSM plugin and configured a 10-question quiz. Set pagination to 1, previewed OK, created a new Page and pasted shortcode and saved.

Visited page and only the title shows up…no questions; tried with IE 11 and Chrome v50.0.2661.87 m.

Watched the code (F12 on IE) through the plugin preview, and it shows the questions on the page, one at a time, each marked with CSS ‘display: none;’ except the active question.

Watched the same code on the shortcode page and all of the questions have ‘display: none;’. So I went to my custom.css and added:

.quiz_section {
    display: inline !important;
}

…and all the questions showed up, not just the one-at-a-time.

Also noted that the Submit button was the style of the theme, not the plugin.

Any way to get the plugin to use the correct style(s) and show the quiz 1 question at a time?