MyHeader.vue

<template>
  <div class="todo-header">
    <input type="text" placeholder="请输入你的任务名称，按回车键确认">
  </div>
</template>

<script>
export default {
  name: "MyHeader"
}
</script>

<style scoped>
/* header */
.todo-header input{
  width:560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus{
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),0 0 8px rgba(82, 168, 236, 0.6);
}
</style>

MyList.vue

<template>
  <ul class="todo-main">
    <MyItem/>
    <MyItem/>
    <MyItem/>
    <MyItem/>
  </ul>
</template>

<script>
import MyItem from "./MyItem";
export default {
  name: "MyList",
  components:{
    MyItem
  }
}
</script>


<style scoped>
.todo-main{
  margin-left: 0px;
  border: 1px solid #ddd;
  border-radius: 2px;
  padding: 0px;
}

.todo-empty{
  height: 40px;
  line-height: 40px;
  border: 1px solid #ddd;
  border-radius: 2px;
  padding-left:5px;
  margin-top: 10px;
}
</style>

MyFooter.vue

<template>
  <div class="todo-footer">
    <label>
      <input type="checkbox"/>
    </label>
    <span>
           <span>已完成0</span> / 全部2
       </span>
    <button class="btn btn-danger">清除已完成的任务</button>
  </div>
</template>

<script>
export default {
  name: "MyFooter"
}
</script>

<style scoped>
/* Footer */
.todo-footer {
  height: 40px;
  line-height: 40px;
  padding-left: 6px;
  margin-top: 5px;
}
.todo-footer label{
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}
.todo-footer label input{
  position: relative;
  top: 1px;
  vertical-align: middle;
  margin-right: 5px;
}

.todo-footer button{
  float: right;
  margin-top: 5px;
}
</style>

MyItem.vue

<template>
  <div>
    <li>
      <label >
        <input type="checkbox"/>
        <span>xxxx</span>
      </label>
      <button class="btn btn-danger" style="display:none">删除</button>
    </li>
  </div>
</template>

<script>
export default {
  name: "MyItem"
}
</script>

<style scoped>
li{
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}
li label{
  float:left;
  cursor: pointer;
}

li label li input{
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button{
  float: right;
  display: none;
  margin-top: 3px;
}

li:before{
  content: initial;
}
li:last-child{
  border-bottom: none;
}
</style>

App.vue

<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <MyHeader/>
        <MyList/>
        <MyFooter/>
      </div>
    </div>
  </div>

</template>

<script>
import MyHeader from './components/MyHeader'
import MyList from './components/MyList'
import MyFooter from './components/MyFooter'

export default {
name:'App',
components:{MyHeader,MyList,MyFooter},
}
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>

main.js

//引入Vue
import Vue from 'vue'
//引入App
import App from "./App";
//关闭Vue的生产提示
Vue.config.productionTip = false
//创建vm
new Vue({
    el:'#app',
    render:h=>h(App)
})