added line

public/style/main.css

@@ -158,23 +158,19 @@ footer #social {
 }
 
 .col3 .col {
-    width: 33%;
+    width: 33.333%;
     float: left;
-    padding-right: 1em;
 }
 
 .col3 .col:last-child {
-    float: right;
     padding-right: 0;
 }
 
 .box {
-    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
-    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
-    box-sizing: border-box;         /* Opera/IE 8+ */
     vertical-align: top;
     padding-bottom: 0.1em;
     margin-bottom: 0.1em;
+    background: #f5f5f5;
 }
 
 .box h2 {
@@ -207,7 +203,7 @@ footer #social {
     vertical-align: middle;
 }
 
-.col2 {
+.col2.line, .col3.line {
     border-top: 5px solid #993533;
 }