Update style

* Add new default style to project

* Add new BaseButton component

* Remove link to stylesheet in index.html

* Add import for default style

* Update styles and structure for project components

src/App.vue

@@ -12,29 +12,12 @@
   font-family: var(--font-family);
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
-  color: #2c3e50;
-}
-a {
-  text-decoration: none;
-}
-h2 {
-  font-size: 1.8em;
-  margin-bottom: 5px;
-}
-p {
-  font-size: 1.1em;
-  line-height: 1.4em;
-  padding-bottom: 10px;
-}
-.container {
-  max-width: 1200px;
-  margin: 0 auto;
-  padding: 15px;
+  color: var(--text-color);
 }
 </style>
 
 <script>
-import SiteHeader from '@/components/SiteHeader.vue'
+import SiteHeader from './components/SiteHeader'
 
 export default {
   name: 'App',