some sectioning height optimizations

css/about.css

@@ -86,6 +86,7 @@
 
     #section2 {
         height: 130%;
+        min-height: 860px;
     }
 
     #aboutPic {

css/contact.css

@@ -49,7 +49,7 @@
 
 /* Screen smaller than 600px -- general small width screens */
 @media screen and (max-width: 1200px) {
-    #section5 {
-        height: 100%;
-    }
+    /*#section5 {*/
+    /*    height: 100%;*/
+    /*}*/
 }

css/experience.css

@@ -89,6 +89,7 @@
 @media screen and (max-width: 1200px) {
     #section3 {
         height: 100%;
+        min-height: 700px;
     }
 
     .tab {

css/general.css

@@ -61,10 +61,6 @@ body, html, #maincontent {
         background: #311E25;
     }
 
-    .tile {
-        min-height: 300px;
-    }
-
     #backtotopbutton {
         display: none; /* hide scroll to top button on mobile devices */
     }