Реализован шаблон и стили калькулятора

src/App.vue

@@ -1,28 +1,17 @@
 <template>
   <div id="app">
-    <img alt="Vue logo" src="./assets/logo.png">
-    <HelloWorld msg="Welcome to Your Vue.js App"/>
+    <calc-view msg="Welcome to Your Vue.js App"/>
   </div>
 </template>
 
 <script>
-import HelloWorld from './components/HelloWorld.vue'
+import CalcView from './components/CalcView.vue'
 
 export default {
   name: 'App',
+
   components: {
-    HelloWorld
+    CalcView
   }
 }
 </script>
-
-<style>
-#app {
-  font-family: Avenir, Helvetica, Arial, sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  text-align: center;
-  color: #2c3e50;
-  margin-top: 60px;
-}
-</style>

src/components/CalcView.vue

@@ -0,0 +1,88 @@
+<template>
+  <div class="calculator">
+    <div class="result"></div>
+
+    <div class="pad">
+      <button class="clear">C</button>
+      <button>/</button>
+      <button>7</button>
+      <button>8</button>
+      <button>9</button>
+      <button>x</button>
+      <button>4</button>
+      <button>5</button>
+      <button>6</button>
+      <button>-</button>
+      <button>1</button>
+      <button>2</button>
+      <button>3</button>
+      <button>+</button>
+      <button class="zero">0</button>
+      <button class="equal">=</button>
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'HelloWorld',
+  props: {
+    msg: String
+  }
+}
+</script>
+
+<style scoped>
+.calculator {
+  --border-style: 2px solid black;
+  --border-radius: 4px;
+
+  border: var(--border-style);
+  border-radius: var(--border-radius);
+  max-width: 350px;
+}
+
+.result {
+  font-size: 42px;
+  width: 100%;
+  height: 70px;
+  box-sizing: border-box;
+  display: grid;
+  padding: 10px;
+  justify-items: end;
+  align-items: center;
+  border-bottom: var(--border-radius);
+}
+
+.pad {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(60px, 1fr));
+  grid-gap: 10px;
+  padding: 15px;
+}
+
+button {
+  cursor: pointer;
+  font-size: 20px;
+  display: grid;
+  padding: 15px 10px;
+  justify-items: center;
+  align-items: center;
+  border: var(--border-style);
+  border-radius: var(--border-radius);
+  background: lightgray;
+}
+
+.clear {
+  background: lightblue;
+  grid-column: 1/4;
+}
+
+.zero {
+  grid-column: 1/4;
+}
+
+.equal {
+  background: lightgreen;
+}
+</style>