Add CSS Styles to Just One HTML element - html

Question

I have just started learning about web development and I'm having some issues. In the website that I am currently creating I have a navigation menu. However, I also have other ul and li elements throughout the main content of the web page. I have been trying to get certain styles to apply to just my navigation bar and not the bulleted lists in my content but no matter what I try, I either get the styles on both my navigation and the content or on none. I have looked on google and a lot of different websites, I have tried having the .navigation and # in front of my styles but nothing seems to be working. I must be doing something wrong somewhere but I have no idea what it could be. If someone could help that'll be wonderful! The following is my navigation barcode:
<div id=navbar">
<ul>
<li>
Home
</li>
<li>
About Volleyball
</li>
<li>
Sign-Up
</li>
<li>
Announcements
</li>
<li>
Contact Us
</li>
<li>
Links
</li>
</ul>
</div>
and these are the styles on my separate css style sheet that I wish to apply to just the above code:
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #4da6ff;
}
li {
float: left;
}
li a {
display: block;
color: white;
text-align: center;
padding: 14px 75px;
text-decoration: none;
}
li a:hover {
background-color: #80bfff;
}

Answer 1

You can simply select only elements which are children of you navbar by prepending your selectors with #navbar which selects the element with the id navbar and the selectors after that will only search in its children:
#navbar ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #4da6ff;
}
#navbar li {
float: left;
}
#navbar li a {
display: block;
color: white;
text-align: center;
padding: 14px 75px;
text-decoration: none;
}
#navbar li a:hover {
background-color: #80bfff;
}
<div id="navbar">
<ul>
<li>Home</li>
<li>About Volleyball</li>
<li>Sign-Up</li>
<li>Announcements</li>
<li>Contact Us</li>
<li>Links</li>
</ul>
</div>
<ul>
<li>No styles applied</li>
<li>No styles applied</li>
</ul>

Answer 2

In your .css file you can create classes to use across elements.
Try this in the .css file.
.hello {
color: blue;
text-align: center;
}
Then try this in your html
<h1 class="hello">Hello World</h1>
This will apply the style defined in the .css file to the element with the class "hello".
More information about classes can be found here: https://www.w3schools.com/cssref/sel_class.asp

Answer 3

If you want to add style to any specific element then you can add CSS code to that specific element like: for tag you can use p{color:red} OR by using class: p.my-element{color:red} or using ID: p#{color red}
You are in your initial phase of learning development. So read and write your own code.

Answer 4

Look into id's and classes.
This will allow you to style elements seperately.