ora3 halfway done

ora3/album/album.css

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+album {
+    border: thin solid black;
+    border-radius: 0.5em;
+    box-shadow: 0.25em 0.25em 0.5em gray;
+    display: block;
+    font-family: 'Segoe UI', Inter, Verdana, sans-serif;
+    margin: 1em auto;
+    padding: 1em;
+    width: fit-content;
+}
+
+artist,
+album>title,
+year {
+    font-size: x-large;
+    font-weight: bold;
+    display: inline-block;
+    margin-bottom: 0.25em;
+}
+
+artist::after {
+    content: " \2013 ";
+}
+
+year::before {
+    content: "(";
+}
+
+year::after {
+    content: ")";
+}
+
+tracks {
+    counter-reset: track-number;
+    display: table;
+    width: 100%;
+}
+
+track {
+    display: table-row;
+    transition: background-color 0.4s, font-weight 0.4s;
+}
+
+track>title,
+length {
+    display: table-cell;
+    padding: 0.5em;
+}
+
+track>title::before {
+    content: counter(track-number) ".";
+    counter-increment: track-number;
+    display: inline-block;
+    margin-right: 0.5em;
+    text-align: right;
+    width: 2em;
+}
+
+length {
+    font-variant-numeric: tabular-nums;
+    text-align: right;
+}
+
+track:nth-child(odd) {
+    background-color: whitesmoke;
+}
+
+track:nth-child(even) {
+    background-color: white;
+}
+
+track:hover {
+    background-color: gold;
+    cursor: pointer;
+    font-weight: bold;
+}

ora3/album/album.dtd

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+<?xml version="1.0" encoding="UTF-8"?>
+<!ELEMENT album (artist, title, year, tracks)>
+<!ELEMENT artist (#PCDATA)>
+<!ELEMENT title (#PCDATA)>
+<!ELEMENT year (#PCDATA)>
+<!ELEMENT tracks (track+)>
+<!ELEMENT track (title, length)>
+<!ELEMENT length (#PCDATA)>

ora3/album/album.txt

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+Steven Wilson: Hand. Cannot. Erase. (2015)
+
+ 1. First Regret        2:01
+ 2. 3 Years Older       10:18
+ 3. Hand Cannot Erase   4:13
+ 4. Perfect Life        4:43
+ 5. Routine             8:58
+ 6. Home Invasion       6:24
+ 7. Regret #9           5:01
+ 8. Transience          2:45
+ 9. Ancestral           13:30
+10. Happy Returns       6:00
+11. Ascendant Here On…  1:54

ora3/album/album.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE album SYSTEM "album.dtd">
+<?xml-stylesheet href="album.css" type="text/css"?>
+<album>
+    <artist>Steven Wilson</artist>
+    <title>Hand. Cannot. Erase.</title>
+    <year>2015</year>
+    <tracks>
+        <track>
+            <title>First Regret</title>
+            <length>2:01</length>
+        </track>
+        <track>
+            <title>3 Years Older</title>
+            <length>10:18</length>
+        </track>
+        <track>
+            <title>Hand Cannot Erase</title>
+            <length>4:13</length>
+        </track>
+        <track>
+            <title>Perfect Life</title>
+            <length>4:43</length>
+        </track>
+        <track>
+            <title>Routine</title>
+            <length>8:58</length>
+        </track>
+        <track>
+            <title>Home Invasion</title>
+            <length>6:24</length>
+        </track>
+        <track>
+            <title>Regret #9</title>
+            <length>5:01</length>
+        </track>
+        <track>
+            <title>Transience</title>
+            <length>2:45</length>
+        </track>
+        <track>
+            <title>Ancestral</title>
+            <length>13:30</length>
+        </track>
+        <track>
+            <title>Happy Returns</title>
+            <length>6:00</length>
+        </track>
+        <track>
+            <title>Ascendant Here On…</title>
+            <length>1:54</length>
+        </track>
+    </tracks>
+</album>