Theme development

I'm new to D8, and am trying to create a new theme. I'm stuck on trying to simply add a CSS file/reference globally. I'm following the directions here, and about a dozen other sites trying to describe the same thing.

Notes:

Hi

One of my clients website was created using Drupal 7 and now they want to make some changes to the home page.

Just to change a few colors and images.

I am new to drupal and wondering how I can make the changes

I have the drupal admin panel username and password and also the entire website root folder in my local machine

Please help

Hello,

I've created a block with my view.
Using a custom tpl file i can now show fields i want in the way i want it.

The problem is..

When i put the CSS i filled in directly in the tpl.php file, in the external CSS file i use for my site the CSS seems to be ignored.
Is this normal?
My external CSS file is well read by the site because i'm using is for everthing else.

Thx!

I would like to split my menu items on 2 rows and center them.

First item --> First
Item

Is it possible using CSS ?
I've been trying this with "menu_tree__primary" but inside the return, there is already structure for the menu (

)
Simply adding a line break is not an option ? :)

Don't really know where to look :(

Thx !

Pls i wouls like to build a news aggregator similar or a clone to kenyamoja .com.

Can you tell me the best contributed theme i can use for building the site? The modules and plugins and other requirements to build the site.
and if possible step by step instruction on what to do
Also i would like to have a mentor i can interact with on the use of drupal 7. my email is kandywandy23 AT gmail dot com.

Thanks and expecting responses.

Cheers.

Hi,

First I wanna say, This is my first Drupal site. I have a custom content type call 'events'. I'm trying to create a custom template for this content type, Because my structure of an EVENT node is completely different than others.
This is how the template structure should be:-