Styling wordpress plugin "Membership 2 Pro" with foundation

_membership2pro.scss

.ms-alert-box {
   @include callout-base;
   ms-alert-success {
       @include callout-style($success-color);
   }
}
.ms-form-price-boxes {
  @include flex-grid-row();
.ms-membership-form{
  @include breakpoint(small) {
    @include flex-grid-column(12);
  }
  @include breakpoint(medium) {
    @include flex-grid-column(6);
  }
  .ms-membership-details-wrapper{
    @include flex-grid-row(nest collapse);
    border: solid 1px #DDDDDD;
    > div{
      @include flex-grid-column(12, 0);
    }
   .ms-top-bar {
     background-color: $secondary-color;
     .ms-title{
     color: $white;
     font-size: 2rem;
     font-weight: 200;
     border-bottom: 0;
       }
     }
     .ms-price-details{
       @include flex-grid-row();
       padding: 0;
     }
     .ms-description {
       @include flex-order(2);
       li{
         @include flex-grid-column(12);
         @extend .no-bullet;
         text-align: center;
         text-align: justify;
         border-bottom: solid 1px $secondary-color;
         padding: 0.875rem 0rem;
         &:last-child {
           border-bottom: 0;
         }
       }
     }
     .ms-price{
       @include flex-grid-column(12, 0);
       @include flex-order(1);
       background-color: $blue-2;
       color: $white;
       text-align: center;
       font-size: 1.75rem;
       border-bottom: 0;
     }
     .ms-bottom-bar {
       margin: 0;
       background-color: 0;
       padding: 0;
       .button{
        @include button-expand();
        border-radius: 0;
        font-weight: 500;
        font-size: 1.2rem;
       }
     }
   }
 }
}
.ms-form-element{
  &.ms-form-element-xprofile{
    &.editfield{
      .checkbox,.radio{
        // @include fieldset();

        .label{
          font-size: 1rem;
          line-height: 1.5;
          background: $body-background;
          padding: $legend-padding;
          margin: 0;
          margin-#{$global-left}: rem-calc(-3);
        }
        .input-options{
          &.radio-button-options{
            label{
              @include form-element();
              float: none;
              padding: 0.2rem;
              input{
                float: none;
                  min-width: unset;
              }
            }
          }
          &.checkbox-options{
              column-count: 2;
            label{
              float: none;
              display: list-item;
              @extend .no-bullet;
              // font-weight: bold;
              @include form-element();
              // height: 2rem;
              padding: 0.2rem;
              &:nth-child(odd){
              }
              input{
                min-width: unset;
                float: none;
              }
            }
          }
        }
      }
      input{
        &[type="textbox"]{
          @include form-element();
        }
      }
    }
  }
}