.container {
    margin-left: auto;
    margin-right: auto;
    max-width: 1280px;
}


.sammel { border: 0px solid;
          width:  340px;
          height: 150px;
          border-radius: 10px;
          background:  #e0e0e0;
}


.aqi-container {
    border: 5px solid;
    border-radius: 10px;
    width: 140px;
    height: 120px;
    float: left;
    margin: 5x;
    text-align: center;
    padding: 10px;
}

.aqi {
    font-size: 4em;
    font-weight: bold;
}

.pm-label {
    font-style: italic;
}

.time {
    text-align: center;
}

h2 {
  text-align: center;
}