web0715/scss/index.scss

$a:plum;
$box1: 2px solid #f00;
// 单行注释
/*多行注释*/
.box {
    width: 500px;
    height: 500px;
    border: $box1;
    $bb: purple !global;
}
$cc: red !important;
$dd: yellow !default;
h1 {
    // color: $cc;
    // color: $dd;
    color: $bb;
}