Help! I can't create columns!

I’m trying to format my pages to create columns with this plugin. I put the below into my css editor.

lcp_paginator.css: /* catelist table form */
.lcp_catlist {
margin-left: auto;
margin-right: auto;
font-size: 16px;
line-height: 35px;
}

.lcp_catlist li {
width: 28%;
min-height: 150px;
display: -moz-inline-stack;
display: inline-block;
vertical-align: top;
margin: 0;
padding: 19px;
zoom: 1;
}

.lcp_catlist li:after {
content: ‘.’;
height: 0;
visibility: hidden;
display: block;
clear: both;
}

#lcp_instance_0 {
padding-left: 0;
margin-left: -19px;
}

But it only shows up as one column no matter what I do to tweak it. Any suggestions? Also any ideas on how to get rid of the bullet points?
You can look at one of my pages if it helps: http://rightwhereileftoff.com/diy/

https://ww.wp.xz.cn/plugins/list-category-posts/