syntax error

* {
  font-size: 14px;
  font-family: "Noto Sans";
  transition: 100ms;
  box-shadow: unset;
}

.control-center .notification-row {
  background-color: unset;
}

.control-center .notification-row .notification-background .notification,
.control-center
  .notification-row
  .notification-background
  .notification
  .notification-content,
.floating-notifications
  .notification-row
  .notification-background
  .notification,
.floating-notifications.background
  .notification-background
  .notification
  .notification-content {
  margin-bottom: unset;
}

.control-center .notification-row .notification-background .notification {
  margin-top: 0.15rem;
}

.control-center .notification-row .notification-background .notification box,
.control-center .notification-row .notification-background .notification widget,
.control-center
  .notification-row
  .notification-background
  .notification
  .notification-content,
.floating-notifications
  .notification-row
  .notification-background
  .notification
  box,
.floating-notifications
  .notification-row
  .notification-background
  .notification
  widget,
.floating-notifications.background
  .notification-background
  .notification
  .notification-content {
  border: unset;
  border-radius: 1.159rem;
  -gtk-outline-radius: 1.159rem;
}

.floating-notifications.background
  .notification-background
  .notification
  .notification-content,
.control-center .notification-background .notification .notification-content {
  background-color: {{colors.background.default.hex}};
  padding: 0.818rem;
  padding-right: unset;
  margin-right: unset;
}

.control-center
  .notification-row
  .notification-background
  .notification.low
  .notification-content
  label,
.control-center
  .notification-row
  .notification-background
  .notification.normal
  .notification-content
  label,
.floating-notifications.background
  .notification-background
  .notification.low
  .notification-content
  label,
.floating-notifications.background
  .notification-background
  .notification.normal
  .notification-content
  label {
  color: {{colors.outline.default.hex}};
}

.control-center
  .notification-row
  .notification-background
  .notification..notification-content
  image,
.control-center
  .notification-row
  .notification-background
  .notification.normal
  .notification-content
  image,
.floating-notifications.background
  .notification-background
  .notification.low
  .notification-content
  image,
.floating-notifications.background
  .notification-background
  .notification.normal
  .notification-content
  image {
  background-color: {{colors.surface_container_high.default.hex}};
  color: {{colors.on_surface.default.hex}};
}

.control-center
  .notification-row
  .notification-background
  .notification.critical
  .notification-content,
.floating-notifications.background
  .notification-background
  .notification.critical
  .notification-content {
  background-color: {{colors.surface_container_high.default.hex}};
  color: {{colors.on_surface.default.hex}};
}

.control-center
  .notification-row
  .notification-background
  .notification
  .notification-content
  .summary,
.floating-notifications.background
  .notification-background
  .notification
  .notification-content
  .summary {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.9909rem;
  font-weight: 500;
}

.control-center
  .notification-row
  .notification-background
  .notification
  .notification-content
  .time,
.floating-notifications.background
  .notification-background
  .notification
  .notification-content
  .time {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.8291rem;
  font-weight: 500;
  margin-right: 1rem;
  padding-right: unset;
}

.control-center
  .notification-row
  .notification-background
  .notification
  .notification-content
  .body,
.floating-notifications.background
  .notification-background
  .notification
  .notification-content
  .body {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.8891rem;
  font-weight: 400;
  margin-top: 0.31rem;
  padding-right: unset;
  margin-right: unset;
}

.control-center .notification-row .close-button,
.floating-notifications.background .close-button {
  background-color: unset;
  border-radius: 100%;
  border: none;
  box-shadow: none;
  margin-right: 13px;
  margin-top: 6px;
  margin-bottom: unset;
  padding-bottom: unset;
  min-height: 20px;
  min-width: 20px;
  text-shadow: none;
}

.control-center .notification-row .close-button:hover,
.floating-notifications.background .close-button:hover {
  background-color: rgba({{colors.background.default.red}}, {{colors.background.default.green}}, {{colors.background.default.blue}}, 0.15);
}

.control-center {
  border-radius: 1.705rem;
  -gtk-outline-radius: 1.705rem;
  border-top: 1px solid rgba(164, 162, 167, 0.19);
  border-left: 1px solid rgba(164, 162, 167, 0.19);
  border-right: 1px solid rgba(128, 127, 132, 0.145);
  border-bottom: 1px solid rgba(128, 127, 132, 0.145);
  box-shadow: 0px 2px 3px rgba(0, 0, 0, 0.45);
  margin: 7px;
  background-color: {{colors.background.default.hex}};
  padding: 1.023rem;
}

.control-center trough {
  border-radius: 9999px;
  -gtk-outline-radius: 9999px;
  min-width: 0.545rem;
  background-color: transparent;
}

.control-center slider {
  border-radius: 9999px;
  -gtk-outline-radius: 9999px;
  min-width: 0.273rem;
  min-height: 2.045rem;
  background-color: rgba(199, 197, 208, 0.31);
}

.control-center slider:hover {
  background-color: rgba(199, 197, 208, 0.448);
}

.control-center slider:active {
  background-color: #77767e;
}

/* title widget */

.widget-title {
  padding: 0.341rem;
  margin: unset;
}

.widget-title label {
  font-family: "Noto Sans", sans-serif;
  font-size: 1.364rem;
  color: {{colors.on_background.default.hex}};
  margin-left: 0.941rem;
}

.widget-title button {
  border: unset;
  background-color: unset;
  border-radius: 1.159rem;
  -gtk-outline-radius: 1.159rem;
  padding: 0.141rem 0.141rem;
  margin-right: 0.841rem;
}

.widget-title button label {
  font-family: "Noto Sans", sans-serif;
  font-size: 1.0409rem;
  color: {{colors.on_background.default.hex}};
  margin-right: 0.841rem;
}

.widget-title button:hover {
  background-color: rgba(128, 128, 128, 0.3);
}

.widget-title button:active {
  background-color: rgba(128, 128, 128, 0.7);
}

/* Buttons widget */

.widget-buttons-grid {
  border-radius: 1.159rem;
  -gtk-outline-radius: 1.159rem;
  padding: 0.341rem;
  background-color: rgba(28, 28, 34, 0.35);
  padding: unset;
}

.widget-buttons-grid > flowbox {
  padding: unset;
}

.widget-buttons-grid > flowbox > flowboxchild > button:first-child {
  margin-left: unset;
}

.widget-buttons-grid > flowbox > flowboxchild > button {
  border: none;
  background-color: unset;
  border-radius: 9999px;
  min-width: 5.522rem;
  min-height: 2.927rem;
  padding: unset;
  margin: unset;
}

.widget-buttons-grid > flowbox > flowboxchild > button label {
  font-family: "Materials Symbol Rounded";
  font-size: 1.3027rem;
  color: #e4e1e6;
}

.widget-buttons-grid > flowbox > flowboxchild > button:hover {
  background-color: rgba(128, 128, 128, 0.3);
}

.widget-buttons-grid > flowbox > flowboxchild > button:checked {
  /* OnePlus McClaren edition Orange accent */
  background-color: #ff9f34;
}

.widget-buttons-grid > flowbox > flowboxchild > button:checked label {
  color: #14141b;
}

/* Volume widget */

.widget-volume {
  background-color: rgba(28, 28, 34, 0.35);
  padding: 8px;
  margin: 8px;
  -gtk-outline-radius: 1.159rem;
  -gtk-outline-radius: 1.159rem;
}

.widget-volume trough {
  /* OnePlus McClaren edition Orange accent */
  border: unset;
  background-color: rgba(128, 128, 128, 0.4);
}

.widget-volume trough slider {
  /* OnePlus McClaren edition Orange accent */
  color: unset;
  background-color: #ff9f34;
  border-radius: 100%;
  min-height: 1.25rem;
}

/* Mpris widget */

.widget-mpris {
  background-color: rgba(28, 28, 34, 0.35);
  padding: 8px;
  margin: 8px;
  border-radius: 1.159rem;
  -gtk-outline-radius: 1.159rem;
}

.widget-mpris-player {
  padding: 8px;
  margin: 8px;
}

.widget-mpris-title {
  font-weight: bold;
  font-size: 1.25rem;
}

.widget-mpris-subtitle {
  font-size: 1.1rem;
}