Can’t override CSS shortcode template

Hi, I have modified the style sheet to transform a code snippet to the display flex property, in the folder structure of the child theme … /themes/mytheme-child/ere-templates/shortcodes/property/assets/css
In the files; property.css, property.less and property.min.css

.property-info-inner {
display:flex;
justify-content: space-around;
align-items: center;
height: 40px; }

In this way, the necessary code is reduced.
It is a small part of what I have modified, but this does not override the css of the plugin template sortcode

.property-info-inner {
        display:flex;
        justify-content: space-around;
        align-items: center;
        /*width: 100%;*/
        height: 30px;
        /*line-height: 30px;*/
        overflow: hidden;
        /*.property-info-item-tooltip
        {
          height: 30px;
        }*/
        > div:not(.tooltip) {
          /*display: inline-block;
          width: 27%;*/
          font-size: 18px;
          /*line-height: inherit;
          vertical-align: middle;*/
          span:first-child {
            position: relative;
            margin-right: 5px;
            line-height: inherit;
          }
          .property-info-value {
            font-size: 12px;
            line-height: inherit;
            vertical-align: bottom;
          }
        }
        /*> div.property-area {
          width: 46%;
        }
        .property-bathrooms {
          text-align: center;
        }
        .property-garage {
          text-align: right;
        }*/
      }

etc...


&.property-list {


.property-info {
        margin: 0;
        margin-top: 7px;
        /*.property-area {
          width: 40%;
        }
        .property-bathrooms {
          text-align: center;
        }
        .property-garage {
          text-align: right;
        }*/
      }

}

&.property-zigzac {


/*.property-info-inner {
          width: 100%;
          > div {
          width: 27%;
          }
          .property-area {
            width: 46%;
          }
        }*/


}

It’s a great plugin but the css needs to be modernized

Thank you
Regards