redo rooms page

app/assets/stylesheets/application.scss

@@ -52,12 +52,22 @@ a {
   text-decoration: none !important;
 }
 
+.sessions {
+  background-color: white;
+}
+
 .start-block {
   background-color: white;
   border: 3px solid lightblue;
   border-radius: 4px;
 }
 
+.start-button {
+  font-size: 26px;
+  position: absolute;
+  bottom: 0;
+}
+
 .main-large {
   font-size: 20px;
 }
@@ -83,16 +93,12 @@ html, body {
 }
 
 .wrapper {
-  min-height:100%;
-  position:relative;
+  min-height: 100%;
+  position: relative;
 }
 
 .footer {
   width: 100%;
-  height: 70px;
-  position: absolute;
-  bottom: 0;
-  left: 0;
   text-align: center;
 }