How i can add Multiple Category sections?

[Funkel]

Hello

Im a newbie with css so i found this code in the NodeBB Forum

ul.categories [data-cid="1"]::before {
content: "Neuigkeiten";
background: #1e1f33 url(https://i.imgur.com/liB8eUb.png) no-repeat 10px center;
}

ul.categories [data-cid="3"]::before {
content: "Blocks";
background: #1e1f33 url(https://i.imgur.com/eSUaQuV.png) no-repeat 10px center;
}

ul.categories [data-cid="1"]::before, ul.categories [data-cid="3"]::before {
color: #fff;
display: block;
position: relative;
height: 40px;
line-height: 40px;
font-size: 15px;
border-bottom: 1px #0c2b51 solid;
text-align: left;
padding-left: 70px;
font-style: normal;
text-transform: uppercase;
margin-bottom: 20px;
font-family: "Roboto","Helvetica Neue",Helvetica,Arial,sans-serif;
border-radius: 5px;
margin-left: 10px;
}

I am also shown a category above as you can see here

But my question now is how do I get more category sections? In CSS as I see it there are 2 categories defined or do I see it wrong?

can you help me?

MfG Funkel