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

.ui-btn-box {
  display: inline-block;
}
.ui-btn {
  position: relative;
  border: 0rpx;
  display: inline-block;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 0.7857em 1.5em 0.7857em;
  font-size: 28rpx;
  line-height: 1em;
  text-align: center;
  text-decoration: none;
  overflow: visible;
  margin: 0 0.25em 0 0;
  transform: translate(0rpx, 0rpx);
  border-radius: $radius;
  white-space: nowrap;
  color: var(--text-a);
  background-color: var(--ui-BG);
  vertical-align: baseline;
  &:first-child:last-child {
    margin: 0;
  }
  &:not([class*='round'])::after {
    border-radius: calc(#{$radius} * 2);
  }
  &:not([class*='border'])::after {
    // content: ' ';
    // width: 200%;
    // height: 200%;
    // display: block;
    // position: absolute;
    // z-index: 0;
    // top: 0;
    // left: 0;
    // transform: scale(0.5);
    // transform-origin: 0 0;
    // pointer-events: none;
    // box-sizing: border-box;
    display: none;
  }
  &.round::after {
    border-radius: #{$round-pill};
  }
  &.icon {
    padding: 0.8em 0.8em;
  }

  &.sm {
    font-size: 24rpx;
  }

  &.lg {
    font-size: 32rpx;
  }

  &.xl {
    font-size: 36rpx;
  }

  &.block {
    width: 100%;
    display: block;
    font-size: 32rpx;
  }

  &[disabled] {
    opacity: 0.6;
  }

  &.none-style {
    background-color: transparent !important;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: flex;
  }
}

.ui-btn:not(.icon) [class*='icon-'] {
  margin: 0 0.25em;
}