# Less & Scss 中的 @mixin 用法
// 使用
// 先引入
@import '~@/assets/mixin.scss';
.popup-txt {
width: 100%;
height: 100px;
font-size: 14px;
box-sizing: border-box;
padding-top: 24px;
// 要使用的地方通过 @include 引入样式
@include border-bottom-1px(#eeeeee);
}
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// 背景图片
@mixin bgImage($path) {
background-image: url($path + '@2x.png');
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
background-image: url($path + '@3x.png');
}
}
// 居中布局
@mixin center() {
justify-content: center;
align-content: center;
}
// 不换行
@mixin no-wrap() {
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
@mixin top-line($c: #c7c7c7) {
content: ' ';
position: absolute;
left: 0;
top: 0;
right: 0;
height: 1px;
border-top: 1px solid $c;
color: $c;
transform-origin: 0 0;
transform: scaleY(0.5);
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
transform: scaleY(0.333333333);
}
}
@mixin bottom-line($c: #E6E6E6) {
content: ' ';
position: absolute;
left: 0;
bottom: 0;
right: 0;
height: 1px;
border-bottom: 1px solid $c;
color: $c;
transform-origin: 0 100%;
transform: scaleY(0.5);
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
transform: scaleY(0.333333333);
}
}
@mixin left-line($c: #c7c7c7) {
content: ' ';
position: absolute;
left: 0;
top: 0;
width: 1px;
bottom: 0;
border-left: 1px solid $c;
color: $c;
transform-origin: 0 0;
transform: scaleX(0.5);
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
transform: scaleX(0.333333333);
}
}
@mixin right-line($c: #c7c7c7) {
content: ' ';
position: absolute;
right: 0;
top: 0;
width: 1px;
bottom: 0;
border-right: 1px solid $c;
color: $c;
transform-origin: 100% 0;
transform: scaleX(0.5);
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
transform: scaleX(0.333333333);
}
}
@mixin line($c: #c7c7c7, $border-radius: 0) {
content: ' ';
position: absolute;
left: 0;
top: 0;
width: 200%;
height: 200%;
border: 1px solid $c;
color: $c;
transform-origin: left top;
@if ($border-radius != 0) {
border-radius: $border-radius * 2;
}
transform: scale(0.5);
@media (-webkit-min-device-pixel-ratio: 3), (min-device-pixel-ratio: 3) {
@if ($border-radius != 0) {
border-radius: $border-radius * 3;
}
width: 300%;
height: 300%;
transform: scale(0.333333333);
}
}
// 一像素上边框
@mixin border-top-1px($color: #c7c7c7) {
position: relative;
&:before {
@include top-line();
}
}
// 一像素下边框
@mixin border-bottom-1px($color: #c7c7c7) {
position: relative;
&:after {
@include bottom-line();
}
}
// 一像素上下边框
@mixin border-top-bottom-1px($color: #c7c7c7) {
position: relative;
&:before {
@include top-line();
}
&:after {
@include bottom-line();
}
}
// 一像素左边框
@mixin border-left-1px($color: #c7c7c7) {
position: relative;
&:before {
@include left-line();
}
}
// 一像素右边框
@mixin border-right-1px($color: #c7c7c7) {
position: relative;
&:before {
@include right-line();
}
}
// 一像素边框
@mixin border-1px($color: #c7c7c7, $position: relative, $border-radius: 0) {
position: $position;
&:after {
@include line($color, $border-radius);
}
}
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