They are two different syntaxes of SASS with the same functionalities. SASS was originally the official syntax and it is somewhat different from CSS syntax, with no keys and dots and commas. The SCSS syntax is now the official syntax and is more like the CSS syntax. In practice the choice between the two is a matter of taste. Look below for an example of SASS syntax and another example of SCSS syntax
Example of SASS Syntax:
#main
color: blue
font-size: 0.3em
a
font:
weight: bold
family: serif
&:hover
background-color: #eee
Example of SCSS Syntax:
#main {
color: blue;
font-size: 0.3em;
a {
font: {
weight: bold;
family: serif;
}
&:hover {
background-color: #eee;
}
}
}
These codes are actually the same thing only in different syntax. Note that using SASS what counts is identation, there are no keys or dots and commas. Already using SCSS everything looks very much like CSS, you have keys and dots and commas. But note that SASS features like nesting exist in both syntaxes.
Thank you very much, now it’s clear.
– user22743