绘制三角形（sass）

 

绘制三角形

/// draw triangle
/// @param {type} $type [''] - triangleUp triangleDown triangleLeft triangleRight
/// @param {Size} $border-value-1
/// @param {Size} $border-value-2
/// @param {Size} $border-value-3
/// @param {color} $border-color
/// @require

@mixin draw-triangle($type: '', $border-value-1: 50px , $border-value-2: 50px, $border-color...) {
width: 0;
height: 0;
@if $border-color != '' {
@if $type == 'triangleUp' {
border-left: $border-value-1 solid transparent;
border-right: $border-value-2 solid transparent;
border-bottom: solid $border-color;
}
@if $type == 'triangleDown' {
border-left: $border-value-1 solid transparent;
border-right: $border-value-2 solid transparent;
border-top: solid $border-color;
}
@if $type == 'triangleLeft' {
border-top: $border-value-1 solid transparent;
border-bottom: $border-value-2 solid transparent;
border-right: solid $border-color;
}
@if $type == 'triangleRight' {
border-top: $border-value-1 solid transparent;
border-left: solid $border-color;
border-bottom: $border-value-2 solid transparent;
}
} @else {
border-left: $border-value-1 solid transparent;
border-right: $border-value-2 solid transparent;
border-bottom: solid $border-color;
}
}

来源：https://www.cnblogs.com/y896926473/p/5705903.html