[CSS] flex

display: flex - 기본값(가로 정렬)

flex-direction: column - 세로정렬
flex-direction: row - 가로정렬
align-items: center - 가운데 정렬
flex-wrap: wrap - 태그가 범위를 벗어나면 줄바꿈 

<template>

  <div id="total">
    <div class="main">
      <router-link to="/">main</router-link>
    </div>

    <div id="memu">
      <div class="item">
        <router-link to="spanish">spanish</router-link>
      </div>
      <div class="item">
        <router-link to="weather">weather</router-link>
      </div>
      <div class="item">
        <router-link to="todo">todo</router-link>
      </div>
      <div class="item">
        <router-link to="trade">trade</router-link>
      </div>
    </div>
    <div>
      <router-view></router-view>
    </div>


  </div>

</template>

<script>


export default {
  name: 'main',

  data() {
    return {
    }
  }
}
</script>

<style scoped>
/* https://codepen.io/hexagoncircle/pen/XWbWKwL */

 #total{
   border: 3px solid black;
   display: flex;
   flex-direction: column;
   align-items: center;
   background-color: aqua;
 }
 .main{
   border: 3px solid black;
   margin-top: 100px;
 }
 #memu{
   border: 3px solid black;
   display: flex;
   flex-direction: row;
   align-items: center;
   padding-top: 50px;

 }
 .item{
   border: 3px solid red;
   margin: 10px;
   width: 100px;
   height: 100px;
   /* display: inline-block; */

 }
</style>

 

1. 검정색 박스는 column(세로 정렬)

2. 빨간색 박스는 row(가로 정렬)

3. 파란색 배경 가장 큰박스 기준으로 center(가운데 정렬)