yudao-mall-uniapp-master/sheep/scss/style/_grid.scss

/* ==================
          栅栏
 ==================== */
@use 'sass:math';

@mixin make_col($screen) {
  @for $i from 1 through 12 {
    .ui-col-#{$screen}-#{$i} {
      width: calc(100% / 12 * #{$i});
    }
    .ui-cols-#{$screen}-#{$i} .ui-item {
      width: calc(100% / #{$i});
    }
  }
}
.ui-container {
  box-sizing: border-box;
  margin-left: auto;
  margin-right: auto;
  padding-left: 30rpx;
  padding-right: 30rpx;
  width: 100%;
  max-width: 1440px;
  &-fluid {
    max-width: 100%;
    padding-left: 0;
    padding-right: 0;
  }
}
.ui-grid {
  display: flex;
  flex-wrap: wrap;
  &.multi-column {
    display: block;
    column-count: 2;
    column-width: 0px;
    column-gap: 0px;
    > .ui-item {
      break-inside: avoid;
      padding: 0.001em;
    }
  }
  &.grid-square {
    overflow: hidden;
    > .ui-item {
      margin-right: 20rpx;
      margin-bottom: 20rpx;
      position: relative;
      overflow: hidden;
    }
    @for $i from 1 through 12 {
      &.ui-cols-#{$i} > .ui-item {
        padding-bottom: calc((100% - #{20rpx * ($i - 1)}) / #{$i});
        height: 0;
        width: calc((100% - #{20rpx * ($i - 1)}) / #{$i});
      }
    }
    @for $i from 1 through 12 {
      &.ui-cols-#{$i} > .ui-item:nth-child(#{$i}n) {
        margin-right: 0;
      }
    }
  }
}
@for $i from 1 through 12 {
  .ui-cols-#{$i} .ui-item {
    width: calc(100% / #{$i});
  }
}
@for $i from 1 through 12 {
  .ui-col-#{$i} {
    width: calc(100% / 12 * #{$i});
  }
}
// 小屏
@media screen and (min-width: 0px) {
  @include make_col('xs');
}

// 小屏
@media screen and (min-width: 320px) {
  @include make_col('sm');
}

// 中屏
@media screen and (min-width: 768px) {
  @include make_col('md');
}

// 普通屏
@media screen and (min-width: 1025px) {
  @include make_col('lg');
}

// 大屏
@media screen and (min-width: 1440px) {
  @include make_col('xl');
}

// 超大屏
@media screen and (min-width: 1920px) {
  @include make_col('xxl');
}