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node_modules/vitepress/dist/client/theme-default/components/VPSkipLink.vue

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+<script lang="ts" setup>
+import { ref, watch } from 'vue'
+import { useRoute } from 'vitepress'
+import { useData } from '../composables/data'
+
+const { theme } = useData()
+const route = useRoute()
+const backToTop = ref()
+
+watch(() => route.path, () => backToTop.value.focus())
+</script>
+
+<template>
+  <span ref="backToTop" tabindex="-1" />
+  <a href="#VPContent" class="VPSkipLink visually-hidden">
+    {{ theme.skipToContentLabel || 'Skip to content' }}
+  </a>
+</template>
+
+<style scoped>
+.VPSkipLink {
+  position: fixed;
+  top: 8px;
+  left: 8px;
+  padding: 8px 16px;
+  z-index: 999;
+  border-radius: 8px;
+  font-size: 12px;
+  font-weight: bold;
+  text-decoration: none;
+  color: var(--vp-c-brand-1);
+  box-shadow: var(--vp-shadow-3);
+  background-color: var(--vp-c-bg);
+}
+
+.VPSkipLink:focus {
+  height: auto;
+  width: auto;
+  clip: auto;
+  clip-path: none;
+}
+
+@media (min-width: 1280px) {
+  .VPSkipLink {
+    top: 14px;
+    left: 16px;
+  }
+}
+</style>