Feat: ajoute la modification du CSS et des exemples à reproduire

1NSI/01_Web_HTML_CSS/page_CSS/style.css

@@ -0,0 +1,39 @@
+body {
+    text-align: center;
+}
+
+a {
+    color: red;
+    border: 2px solid black;
+}
+
+li {
+    display: inline;
+}
+
+table {
+    border: 3px solid blue;
+}
+
+.balise {
+    background-color: lightblue;
+    text-align: left;
+    width: 33%;
+    margin-left: auto;
+    margin-right: auto;
+    color: green;
+}
+
+#link {
+    background-color: lightgrey;
+}
+
+#richard {
+    color: lightgrey;
+    background-image: url("./220px-Richard_Stallman_2005_(chrys).jpg");
+    background-color: #cccccc; /* Used if the image is unavailable */
+    height: 500px; /* You must set a specified height */
+    background-position: center; /* Center the image */
+    background-repeat: no-repeat; /* Do not repeat the image */
+    background-size: cover;
+}