SOURCE

var days = ["星期一", "星期二", "星期三", "星期四", "星期五", "星期六", "星期天"];;
var weather = ["大晴天", "晴天", "少云", "多云", "雨天", "下雪", "暴风雨", "迷雾", ];var maxTemp = 110;
var minTemp = 32 ;
function generateWeather() 
{
  var weatherToday;
  var tempToday;
  for (var i = 0; i < days.length; i++)
  {
		weatherToday = weather[Math.floor(Math.random() * weather.length)];
    tempToday = Math.floor(Math.random() * (maxTemp - minTemp) + minTemp);
    dailyTemp[i] = tempTodaytoday;
    document.getElementById("5天的天气").innerHTML += "<div id='" + days[i] + "'class='" + weatherToday + "'><b>Forecast for " + days[i] + ":</b><br><br>"+ weatherToday + " and " + tempTaday + " degrees.</div>";   
  }
}

    html,
  body {
    width: 100%;
    height: 100%;
  }
  
  body {
    background-color: #e9631a;
  }
  
  .flex-container {
    width: 100%;
    height: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }
  
  .flex-unit {
    text-align: center;
  }
  
  h1 {
    font-family: sans-serif;