feat(Card): card footer actions.

src/components/Card/index.js

@@ -0,0 +1,27 @@
+import React from 'react';
+import styled from 'styled-components';
+
+export function Card({ className, children }) {
+  return <CardRoot className={className}>{children}</CardRoot>;
+}
+
+const CardRoot = styled.div`
+  padding: 15px;
+  margin: 15px;
+  background: #fff;
+  border: 1px solid #d2dce2;
+`;
+
+export const CardFooterActions = styled.div`
+  padding-top: 16px;
+  border-top: 1px solid #e0e7ea;
+  margin-top: 30px;
+
+  .bp3-button {
+    min-width: 70px;
+
+    + .bp3-button {
+      margin-left: 10px;
+    }
+  }
+`;