How To Change Estimate Shipping Popup Common CSS

.estimate-shipping-popup {
  position: relative;
  background: #FFF;
  padding: 25px 10px;
  width: auto;
  max-width: 800px;
  margin: 0 auto;
}

.estimate-shipping-popup-zoom-in .mfp-with-anim {
  opacity: 0;
  transition: all 0.2s ease-in-out;
  transform: scale(0.8);
}

.estimate-shipping-popup-zoom-in.mfp-bg {
  opacity: 0;
  transition: all 0.3s ease-out;
}

.estimate-shipping-popup-zoom-in.mfp-ready .mfp-with-anim {
  opacity: 1;
  transform: scale(1);
}

.estimate-shipping-popup-zoom-in.mfp-ready.mfp-bg {
  opacity: 0.8;
}

.estimate-shipping-popup-zoom-in.mfp-removing .mfp-with-anim {
  transform: scale(0.8);
  opacity: 0;
}

.estimate-shipping-popup-zoom-in.mfp-removing.mfp-bg {
  opacity: 0;
}

.shipping-options-loading {
  background: url(../images/ajax-loader-small.gif) no-repeat;
  width: 16px;
  height: 16px;
  position: relative;
  right: 8px;
  margin: 4% 50%;
}

.shipping-address .required {
  margin-left: 0px;
}

.estimate-shipping-row {
  display: flex;
  display: -webkit-flex;
  align-items: center;
}

.estimate-shipping-row.shipping-option {
  cursor: pointer;
}

.estimate-shipping-row.shipping-option.active {
  font-weight: 700;
}

.estimate-shipping-row-item {
  flex: 0 1 100%;
}

.estimate-shipping-row-item.shipping-item {
  padding: 8px 0;
  overflow: hidden;
  overflow-wrap: break-word;
}

.estimate-shipping-row-item.shipping-header-item {
  padding: 12px 0;
  border-bottom: 1px solid #f2f2f2;
  align-self: flex-end;
}

.estimate-shipping-row-item.address-item + .estimate-shipping-row-item.address-item {
  padding-left: 15px;
}

.estimate-shipping-row-item + .estimate-shipping-row-item {
  padding-left: 10px;
}

.estimate-shipping-row-item-radio {
  flex: 0 0 35px;
}

.ship-to-title {
  margin-bottom: 10px;
}

.choose-shipping-title {
  margin-top: 20px;
}

.estimate-shipping-address-control {
  width: 100%;
  height: 36px;
}

.estimate-shipping-radio {
  display: none;
}

.estimate-shipping-radio + label {
  -webkit-appearance: none;
  background-color: #fafafa;
  border: 1px solid #cacece;
  padding: 9px;
  border-radius: 50px;
  display: inline-block;
  position: relative;
}

.estimate-shipping-radio:checked + label:after {
  content: ' ';
  width: 6px;
  height: 6px;
  border-radius: 50px;
  position: absolute;
  top: 6px;
  left: 6px;
  background: #ffffff;
}

.estimate-shipping-radio:checked + label {
  background-color: #4ab2f1;
  color: #99a1a7;
  border: 1px solid #adb8c0;
  border-color: #4ab2f1;
}

.apply-shipping-button {
  border: none;
  padding: 8px 25px;
  background-color: #4ab2f1;
  color: #fff;
}

.apply-shipping-button-container {
  margin-top: 15px;
  text-align: center;
}

.shipping-options-header {
  top: 0;
  z-index: 1;
  position: sticky;
  background-color: #fff;
}

.shipping-options {
  position: relative;
  z-index: 1;
  overflow: hidden;
  overflow-y: auto;
  max-height: 200px;
  background: #FFF no-repeat;
  background-image: -webkit-radial-gradient(50% 0, farthest-side, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0)), -webkit-radial-gradient(50% 100%, farthest-side, rgba(242, 242, 242, 1), rgba(0, 0, 0, 0));
  background-image: -moz-radial-gradient(50% 0, farthest-side, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0)), -moz-radial-gradient(50% 100%, farthest-side, rgba(242, 242, 242, 1), rgba(0, 0, 0, 0));
  background-image: radial-gradient(farthest-side at 50% 0, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0)), radial-gradient(farthest-side at 50% 100%, rgba(242, 242, 242, 1), rgba(0, 0, 0, 0));
  background-position: 0 0, 0 100%;
  background-size: 100% 7px;
}

.shipping-options:before,
.shipping-options:after {
  content: "";
  position: relative;
  z-index: -1;
  display: block;
  height: 30px;
  margin: 0 0 -30px;
  background: -webkit-linear-gradient(top, #FFF, #FFF 30%, rgba(255, 255, 255, 0));
  background: -moz-linear-gradient(top, #FFF, #FFF 30%, rgba(255, 255, 255, 0));
  background: linear-gradient(to bottom, #FFF, #FFF 30%, rgba(255, 255, 255, 0));
}

.shipping-options:after {
  margin: -30px 0 0;
  background: -webkit-linear-gradient(top, rgba(255, 255, 255, 0), #FFF 70%, #FFF);
  background: -moz-linear-gradient(top, rgba(255, 255, 255, 0), #FFF 70%, #FFF);
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), #FFF 70%, #FFF);
}

.no-shipping-options {
  text-align: center;
  margin: 4% 0;
}

.estimate-shipping-popup .message-failure {
  margin: 5px 0 -5px;
  font-size: 12px;
  color: #e4434b;
}

@media all and (max-width: 769px) {

  /*** ESTIMATE SHIPPING POPUP ***/
  .shipping-address {
    flex-flow: column;
  }

  .address-item {
    width: 100%;
  }

  .estimate-shipping-row-item.address-item + .estimate-shipping-row-item.address-item {
    padding-left: 0px;
    padding-top: 8px;
  }
}
@media all and (min-width: 481px) {
  /*** ESTIMATE SHIPPING POPUP ***/

  .estimate-shipping-popup {
    padding: 25px;
  }
}