added PageTop component, markdown styles, white background on logo svg, and documentation comments

components/PageTop.vue

@@ -0,0 +1,29 @@
+<script setup lang="ts">
+import type { PageTopProperty } from "~/utils/pageTop";
+
+const property = defineProps<PageTopProperty>();
+</script>
+
+<template>
+    <div :style="{ backgroundImage: `url(${property.imagePath})` }">
+        {{ property.text }}
+    </div>
+</template>
+
+<style scoped>
+div {
+    display: flex;
+    width: 100vw;
+    height: 25vh;
+    margin: 0;
+    background-repeat: no-repeat;
+    background-position: center;
+    background-attachment: local;
+    background-size: cover;
+    align-items: center;
+    justify-content: center;
+    color: var(--starlight1);
+    font-size: 36pt;
+    font-weight: bold;
+}
+</style>