minor formatting changes for consistency

src/components/ttt-tile/ttt-tile.scss

@@ -113,7 +113,7 @@
 .ttt-tile-open-modal {
     display: inline-block;
     padding: 0 .25rem;
-    width: 1.25em;
-    height: 1.25em;
-    vertical-align: top;
+    width: 1rem;
+    height: 1rem;
+    vertical-align: text-bottom;
 }

src/views/splash/hoc/top-banner.jsx

@@ -49,37 +49,37 @@ var TopBanner = injectIntl(React.createClass({
                     <FlexRow className="top-animation">
                         <img
                             src="/images/hoc/s.png"
-                            alt="C"
+                            alt=""
                             className="top-animation-letter mod-letter-s"
                         />
                         <img
                             src="/images/hoc/c1.png"
-                            alt="C"
+                            alt=""
                             className="top-animation-letter mod-letter-c1"
                         />
                         <img
                             src="/images/hoc/r.png"
-                            alt="R"
+                            alt=""
                             className="top-animation-letter mod-letter-r"
                         />
                         <img
                             src="/images/hoc/a.png"
-                            alt="A"
+                            alt=""
                             className="top-animation-letter mod-letter-a"
                         />
                         <img
                             src="/images/hoc/t.png"
-                            alt="T"
+                            alt=""
                             className="top-animation-letter mod-letter-t"
                         />
                         <img
                             src="/images/hoc/c2.png"
-                            alt="C"
+                            alt=""
                             className="top-animation-letter mod-letter-c2"
                         />
                         <img
                             src="/images/hoc/h.png"
-                            alt="H"
+                            alt=""
                             className="top-animation-letter mod-letter-h"
                         />
                     </FlexRow>