[copyright] fix copyright style

assets/css/main.css

@@ -1881,7 +1881,8 @@ footer .copyright {
   font-size: 10px;
   width: 180px;
   margin: 0 auto;
-  color: #000;
+  color: #333;
+  opacity: 0.5;
   text-transform: uppercase;
   font-weight: 700;
 }
@@ -1904,17 +1905,18 @@ footer .copyright li + li {
   margin-left: -3px;
 }
 footer .copyright a {
-  color: #000;
-  border-bottom: 1px solid #bbb;
-  display: inline-block;
-  padding: 0 2px;
-  margin: 0 5px;
-  transition: all 0.4s;
+    color: #333;
+    opacity: 0.5;
+    border-bottom: 1px solid #bbb;
+    display: inline-block;
+    padding: 0 2px;
+    margin: 0 5px;
+    transition: all 0.4s;
 }
 .nonTouch footer .copyright a:hover {
   border-bottom-color: #f36521;
   color: #000;
-  text-shadow: 0 1px 0 #888;
+  opacity: 1.0;
 }
 @media (min-width:  768px) {
   footer {
@@ -1937,14 +1939,9 @@ footer .copyright a {
     float: right;
   }
   footer .copyright {
-    color: #333333;
-    opacity: 0.5;
     margin: 0 auto;
     padding: 0 0 12px;
   }
-  footer .copyright a {
-    color: #333;
-  }
   footer nav {
     margin: 0 0 5px;
   }
@@ -1962,6 +1959,7 @@ footer .copyright a {
   footer .copyright {
     font-size: 11px;
     width: 210px;
+    display: inline;
   }
 }
 @keyframes flash {