1, less is the extension of CSS technology, can be backwards compatible with CSS, new features also use CSS syntax.
2, less and SASS use must first declare, then use, less format for. less,sass format for. Sass and. Scss (Common)
3. Classification:
(1) Variables:
less:@+ Name: Value used: selector {property: @ name}
sass:@+ Name: Value used: selector {property name: $ name}
(2) Mixed fixed value
Less:. Name {property: value} used: selector {. name}
SASS: @mixin declaration mix, called by @incl
@mixin Name {property: value}
@include Name: {property: Value}
(3) mixed with parameters
Less:. Name (@ name) {property: Value}
. Name (Specific value)
Sass: @mixin Name (¥ name {property: value}
@include name (specific value)
(4) Multi-parameter mixing
Less:. Name (@x,@y,@z) {property: Value}
. Name (x, Y, z)
Sass: @mixin name (¥x,¥y,¥z)
@include name (x, Y, z)
(5) The introduction method is: @import "file name", but the Sass file is not merged.
The usage and difference of less and sass