Problem with styling

Hi,

I wanted to adjust the styling of the output.
So I have this page with this code:
[members-list id=1 search=true radius=false alpha=false pagination=true sort=true]

I wanted (for example) to do this (style.css):

.WP-ml-member {
display: inline-block;
width: 50%;
}
.tern_members_view {
	display: none;
}

However , nothing happens.

Any help is appreciated.