.is-responsive > .wp-block-navigation-item strong {
  display: inline-block;
  vertical-align: middle;
  overflow: hidden;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  transition-property: color;
  transition-duration: 0.5s;
}
.is-responsive > .wp-block-navigation-item strong:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ff0000;
  border-radius: 100%;
  transform: scale(0);
  transition-property: transform;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}
.is-responsive > .wp-block-navigation-item strong:hover,
.is-responsive > .wp-block-navigation-item strong:focus,
.is-responsive > .wp-block-navigation-item strong:active {
  color: rgba(255, 255, 255, 0.7);
}
.is-responsive > .wp-block-navigation-item strong:hover:before,
.is-responsive > .wp-block-navigation-item strong:focus:before,
.is-responsive > .wp-block-navigation-item strong:active:before {
  transform: scale(2);
}
.is-vertical > .wp-block-navigation-item strong {
  display: inline-block;
  vertical-align: middle;
  overflow: hidden;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  transition-property: color;
  transition-duration: 0.5s;
}
.is-vertical > .wp-block-navigation-item strong:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ff0000;
  border-radius: 100%;
  transform: scale(0);
  transition-property: transform;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}
.is-vertical > .wp-block-navigation-item strong:hover,
.is-vertical > .wp-block-navigation-item strong:focus,
.is-vertical > .wp-block-navigation-item strong:active {
  color: rgba(255, 255, 255, 0.7);
}
.is-vertical > .wp-block-navigation-item strong:hover:before,
.is-vertical > .wp-block-navigation-item strong:focus:before,
.is-vertical > .wp-block-navigation-item strong:active:before {
  transform: scale(2);
}