add variables, refaktoring

CSS/Block/footer.css

@@ -0,0 +1,3 @@
+footer{
+    background: var(--fullblock);
+}

CSS/Block/header.css

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+header {
+    position: fixed;
+    top: 0px;
+    width: 100%;
+    text-align: center;
+    padding-top: 10px;
+    background: var(--fullblock);
+}
+
+nav ul {
+    list-style-type: none;
+    padding: 0;
+    display: inline-block;
+    margin: 0;
+}
+
+nav li {
+    float: left;
+    text-align: center;
+    
+}
+
+nav li a {
+    display: block;
+    width: 100px;
+    height: 30px;
+    border: 1px solid #4d4d4d;
+    background-color: #4d4d4d;
+    color: white;
+    text-decoration: none;
+    margin: 5px;
+    text-align: center;
+    line-height: 30px;
+}
+
+nav li a:hover {
+    background-color: orange;
+}
+
+#metanavi {
+    color: #4d4d4d;
+    font-weight: bold;
+    margin-bottom: 5px;
+}
+
+#metanavi a {
+    background: #09add0;
+    border: none; 
+    width: 100px; 
+    margin: 0 5px 0 5px; 
+    float: right; 
+    padding: 2px; 
+    border-radius: 5px; 
+    color:#fff;  
+    cursor:pointer; 
+    font-size: 12px;
+    text-decoration: none;
+    text-align: center;
+}
+
+#metanavi a:hover {
+    background: orange;
+}