cleanup repo + add articles

archive/etyd/index.css

@@ -0,0 +1,45 @@
+body {
+    font-family: Arial, Helvetica, sans-serif;
+}
+
+.flexbox {
+    display: flex;
+    flex-wrap: wrap;
+}
+
+.marginright1em {
+    margin-right: 1em;
+}
+
+.marginbottom1em {
+    margin-bottom: 1em;
+}
+
+.resultfeed {
+    height: 100%;
+}
+
+@media (max-width: 700px) {
+    .resultfeed {
+        min-height: 20vh;
+    }
+}
+
+@media (prefers-color-scheme: dark) { /* Dark mode support */
+    body {
+        background-color: black;
+        color: white;
+    }
+
+    input, select, textarea, button {
+        background: none;
+        color: white;
+        border: 1px solid white;
+        padding: 1px 2px;
+    }
+
+    input:disabled, button:disabled {
+        opacity: 0.8;
+        cursor: not-allowed;
+    }
+}