Background Colour

Hello I have added code;

.mtphr-dnt a {
color: #000;
background: #FFFF00;
}

to change the background colour of the font. Is there a way of changing the background of the whole ticker to yellow rather than just the text?

My site is at http://www.tamworthinformed.co.uk if that helps.

Many thanks.

https://wordpress.org/plugins/ditty-news-ticker/