Merge pull request #682 from owncloud/small_css_fixes

Small css fix (used min instead of max)

Author: EParzefall

src/css/header.css

@@ -176,7 +176,7 @@ body {
   margin: 0.25rem 0;
 }
 
-@media screen and (width >= 799px) {
+@media screen and (width <= 799px) {
   .navbar-brand .navbar-item {
     align-items: center;
     display: flex;

src/css/owncloud.css

@@ -129,7 +129,7 @@ blockquote::before {
 /**
  * Supplemental Responsive Styles
  */
-@media screen and (width >= 600px) {
+@media screen and (width <= 600px) {
   footer div.container div.row-full {
     margin-left: 0;
     width: 100%;