add global button styles

Author: cwaring

docs/.vuepress/theme/styles/buttons.styl

@@ -0,0 +1,20 @@
+.btn {
+	font-weight: bold;
+	padding: 10px 15px;
+	border: none;
+	font-size: 1em;
+	margin-right: 10px;
+	border-radius: 2px;
+	transition: all 0.3s;
+	cursor: pointer;
+	outline: none;
+}
+
+.btn-primary {
+	background-color: darken($accentColor, 30%);
+	color: white;
+
+	&:hover {
+		background-color: $accentColor;
+	}
+}

docs/.vuepress/theme/styles/index.styl

@@ -1,4 +1,5 @@
 @import 'util';
+@import 'buttons';
 @import 'layout-center';
 @import 'header';
 @import 'sidebar';