grafana/public/sass/pages/_alerting.scss

.alert-state-paused,
.alert-state-pending {
  color: $text-muted;
}

.alert-state-ok {
  color: $online;
}

.alert-state-warning {
  color: $warn;
}

.alert-state-critical {
  color: $critical;
}

.alert-notify-emails {
  width: 400px;
  border-right: 1px solid $black;
}

.alert-notify-emails .bootstrap-tagsinput {
  width: 394px; // offset for 8px left padding and border width
}

.alert-notify-emails .bootstrap-tagsinput input {
  border: 0;
}

// Alert List

.alert-list {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.alert-list-icon {
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
  .icon-gf, .fa {
    font-size: 200%;
    position: relative;
    top: 2px;
  }
}

.alert-list-body {
  display: flex;
}

.alert-list-main {
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.alert-list-title {
  font-size: $font-size-base;
  margin: 0;
  font-weight: 600;
}

.alert-list-state {
  font-weight: bold;
}

.alert-list-text {
  font-size: $font-size-sm;
  margin: 0;
  line-height: 1.5rem;
  color: $text-color-weak;
}

.alert-list-info {
  color: $text-color;
}

.alert-list-info-left {
  padding-left: 2rem;
}

.alert-list-footer {
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  align-items: flex-end;
}

.panel-has-alert {
  .panel-alert-icon:before {
    content: "\e611";
    position: relative;
    top: 1px;
    left: -3px;
  }
}

.panel-alert-state {
  &--alerting {
    box-shadow: 0 0 10px rgba($critical,0.5);
    position: relative;

    .panel-alert-icon:before {
      color: $critical;
      content: "\e610";
    }
  }

  &--alerting::after {
    content: '';
    position: absolute;
    top: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 10px rgba($critical,1);
    opacity: 0;
    animation: alerting-panel 1.6s cubic-bezier(1,.1,.73,1) 0s infinite alternate;
  }


  &--ok {
    .panel-alert-icon:before {
      color: $online;
      content: "\e611";
    }
  }
}

@keyframes alerting-panel {
  100% {
    opacity: 1;
  }
}