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HTML

            
              div#app

  header: h1 {{ appTitle }}
  
  display(v-bind:res="weatherRes")
  
  actions(v-bind:location="cityName" @search="searchcity")
!

CSS

            
              // FONTS
@import url('https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700');
$main-font: 'Open Sans Condensed', sans-serif;

// COLORS
$white: #fff;
$black: #000;
$palette: #96A8BE, #738BA8, #506E92, #3F6083, #344F70;


// GENERAL
*, *::before, *::after{
  box-sizing: border-box;
}
body{
  font-family: $main-font;
  font-size: 16px;
  font-weight: 300;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: rgba(nth($palette, 1), .40);
}
h1,h2,h3,h4,h5,h6{
  font-weight: normal;
}


// APP STYLES
#app{
  width: 270px;
  margin: 3rem 0;
  background: nth($palette, 3);
  box-shadow: 0 15px 10px -10px rgba(nth($palette, 5), .75);
  overflow: hidden;
  h1{
    margin: 0;
    padding: .3rem 1rem;
    font-size: .75em;
    font-weight: bold;
    text-align: center;
    color: nth($palette, 4);
    background: rgba($white, .2);
  }
}
.display{
  text-align: center;
  color: $white;
  h2{
    margin: 2rem 1rem .5rem;
  }
  h5{
    position: relative;
    margin: .7rem 1rem 4rem;
    font-size: .85em;
    color: nth($palette, 1);
    &::after{
      content: '';
      position: absolute;
      bottom: -1.5rem;
      left: 50%;
      transform: translateX(-50%);
      width: 3rem;
      height: 1px;
      background: rgba($white, .65);
    }
  }
  .temp{
    padding: 0 1rem;
    font-size: 2em;
  }
  img{
    width: auto;
    height: 128px;
    display: inline-block;
  }
  .text{
    margin: 0 0 1.5rem;
    padding: 0 1rem;
    text-transform: uppercase;
    color: $white;
  }
}
.actions{
  position: relative;
  margin-top: 3rem;
  .togglSearch{
    height: 35px;
    line-height: 35px;
    padding: 0 1rem;
    font-family: $main-font;
    text-align: center;
    color: rgba(nth($palette, 1), .6);
    background: nth($palette, 4);
    transform: translateY(0);
    transition: color .4s, transform .4s;
    cursor: pointer;
    &.active{
      transform: translateY(-100%);
    }
    &:hover, &:focus{
      color: nth($palette, 1);
    }
  }
  .panel{
    position: absolute;
    bottom: 0;
    left: 0;
    display: flex;
    width: 100%;
    background: nth($palette, 5);
    transform: translateY(100%);
    transition: transform .4s;
    &.active{
      transform: translateY(0);
    }
    input, button{
      height: 35px;
      line-height: 35px;
      padding: 0 1rem;
      font-family: $main-font;
      outline: none;
      background: transparent;
      border: none;
      transition: color .4s;
      color: rgba(nth($palette, 1), .4);
      &:hover, &:focus{
        color: nth($palette, 1);
      }
    }
    input{
      flex-grow: 2;
    }
    button{
      border-left: 1px solid rgba(nth($palette, 1), .4);
      cursor: pointer;
      i{
        vertical-align: middle;
      }
    }
  }
}
!

JS

            
              /**
 * This pen uses OpenWeatherMap weather API
 * https://openweathermap.org/
 */



/*******************************************
 * GLOBAL COMPONENTS
 *******************************************/

// DISPLAY
Vue.component('display', { 
  props: ['res'],
  template: `
    <section class="display">
      <h2>{{ res.name }}, {{ res.sys.country }}</h2>
      <h5>
        <span>Lat:</span> {{ res.coord.lat }}
        <span>Lon: {{ res.coord.lon }}</span>
      </h5>
      <div class="condition">
        <div class="temp">{{ temperature }}°C</div>
        <img v-bind:src="'https://openweathermap.org/themes/openweathermap/assets/vendor/owm/img/widgets/' + res.weather[0].icon + '.png'" 
               v-bind:alt="'Weather in ' + res.name" 
               width="128" height="128">
        <p class="text">{{ res.weather[0].description }}</p>
      </div>
    </section>
   `,
   computed: {
    temperature(){
      //Remove decimals on temperature value
      var temp = this.res.main.temp,
          noDecimals = temp.toFixed();

      return noDecimals;
    }
  }
});

// ACTIONS
Vue.component('actions', {
  props: ['location'],
  data(){
    return{
      isSearching: false  
    }
  },
  template: `
  <section class="actions">
    <div class="togglSearch" v-bind:class="{'active': isSearching}" @click="isSearching = ! isSearching">
      <span v-if="!isSearching">Search</span>
      <span v-else>Close</span>
    </div>
    <div v-bind:class="{'active': isSearching}" class="panel"> 
      <input type="text" v-model="location">
      <button @click="search"><i class="material-icons">search</i></button> 
    </div>
  </section>
`,
 methods: {
   search(){
     this.$emit('search', this.location);
     this.isSearching = false;
   }
 }
});



/*******************************************
 * ROOT COMPONENT
 *******************************************/
var app = new Vue({
  el: '#app',
  data: {
    appTitle: 'Vue Weather App',
    dataApi: 'aae97860de78632108ecc73036d6d17c',
    cityName: 'milano',
    lang: 'en',
    weatherRes: null
  },
  
  // GET DATA WHEN MOUNTED
  mounted(){
    this.performAJAX();
  },
  
  // METHODS
  methods: {
    // SEARCH A NEW CITY
    searchcity(city){
      this.cityName = city;
      var ctx = this;
      ctx.performAJAX();
    },
    
    // GET WEATHER DATA
    performAJAX(){
      var ctx = this;
    
      axios.get('https://api.openweathermap.org/data/2.5/weather?q=' + 
                ctx.cityName + '&units=metric&lang=' + 
                ctx.lang + '&APPID=' + ctx.dataApi )
      .then(function (response) { 
        ctx.weatherRes = response.data;
      })
      .catch(function (error) {
        console.log(error);
      });
    }
  }
});
!
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