less 函数式写css

@eatingColor: #00557d;
@eatingBg: linear-gradient(135deg, #d7faff 0%, #9fe4fe 100%);

@moneyColor: #275800;
@moneyBg: linear-gradient(135deg, #d8ffc1 0%, #84e58b 100%);
.setOptions(@color,@bg) {
  color: @color;
  background: @bg;
}

#schoolLiveEating {
    float: left;
    .setOptions(@eatingColor, @eatingBg);
  }
  #schoolLiveMoney {
    float: right;
    .setOptions(@moneyColor, @moneyBg);
  }