Minor UI changes

static/css/app.css

@@ -73,8 +73,21 @@ a {
     color: #f06;
 }
-post > img,
-post > p > img {
+blockquote {
+    border-left: 5px solid lightgray;
+}
+
+.twitter-tweet-rendered {
+    margin: auto;
+}
+
+img.txt {
+    float: left;
+    padding: 10px 10px 10px 0px;
+    display: block;
+}
+
+post img {
     display: block;
     margin: auto;
     max-width: 90%;
@@ -110,7 +123,7 @@ a.text-muted {
 .avatar {
     margin: auto;
-    max-width: 180px;
+    max-width: 120px;
     margin-top: 20px;
 }
@@ -122,3 +135,8 @@ a.text-muted {
 .lead {
     padding-left: 10px;
 }
+
+.post-title {
+    margin-top: -10px;
+    margin-bottom: 20px;
+}