Cascading Style Sheets (CSS) is the way we “stylize” a webpage, meaning it is the design of the layout provided with the HTML. They work together to create a webpage. The CSS tells the HTML elements how to be arranged. For example ;
h1 {
color : blue;
text align : left;
}
This is saying you want whatever h1 is to be blue type and to be aligned on the left side. *You can link more than one CSS with an HTML.