body {
    padding: 0px;
    margin: 20px 0px 0px 0px;
    color: white;
    font-family: 'Oswald';
    font-weight: 400;
    letter-spacing: 1px;
    background-color: white;
  }

  #aeroaspire-header {
    display: flex;  
    text-align: center;
    font-size: 42px;
    font-weight: bold;
    margin: 10px 0;
    color: #2A004E;
    align-items: center;       
  justify-content: center;  
  gap: 10px;     
    font-family:Arial, Helvetica, sans-serif;
  }
  
  #aeroaspire-header img {
    height: 60px;
  }
  
  #aeroaspire-header div {
    font-size: 24px;
    font-weight: bold;
    color: #2A004E;
  }
  
  #aeroaspire-link {
    text-decoration: none;   
    display: inline-block;   
  }
  
  #aeroaspire-link span {
    text-decoration: none;    
    color: inherit;           
  }

  #aeroaspire-header a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
  }
  
  footer {
    text-align: center;
    font-size: 18px;
    color: #888;
    color: #555;
  }


  div, img {
    padding: 0px;
    margin: 0px;
  }
  
  #content 
  {
      padding: 27px 0px 27px 27px;
      margin: 0px auto;
      width: 320px;
      height:642px;
      background-image:url('../img/calculator-background.png');
      background-repeat: no-repeat;
  }
  
  #cx3-window 
  {
      padding: 0px;
      margin-top: 40px;
      margin-left: 5px;
      width: 287px;
      height: 190px;
  }
  
  #status-bar, #subtitle, #screen {
    margin: 0px 0px;
  }
  
  #status-bar {
    font-size: small;
    height: 16px;
    line-height: 16px;
  }
  
  #status-bar, #subtitle {
    padding: 0px 4px;
    z-index: 99;
  }
  
  #status-bar>div {
    height: 16px;
  }
  
  #status-bar-title {
    float: left;
    text-align: left;
    width: 40%;
  }
  
  #status-bar-battery {
    float: right;
    text-align: right;
    width: 40%;
  }
  
  #status-bar-clock {
    text-align: center;
  }
  
  #subtitle {
    font-size: small;
    line-height: 20px;
    height: 20px;
  }
  
  #screen 
  {
      height: 165px;
      overflow: hidden;
      border-bottom: 1px solid #111222;
  }
  
  
  #subtitle.hidden+#screen 
  {
      height: 187px;
  }
  
  #keypad {
      position:relative;
  }
  
  
  #options {
    margin: 0px auto;
    text-align: center;
    padding: 10px 0px 10px 0px;
  }
  
  
  /* buttons - general */
  .flight-calculator-buttons
  {
  
      position:absolute;
      left:4px;
      top:50px;
      width:290px;
      height:365px;
      
  }
  
  .flight-calculator-button
  {
      position:absolute;
      width:58px;
      height:58px;
      background-repeat: no-repeat;
      cursor:pointer;
      background-size:contain;
      /*background-color:green;*/
  }
  
  .flight-calculator-button-click
  {
      margin-top:1px;
      margin-left:1px;
  }
  
  .flight-calculator-button-over
  {
      opacity: 0.7;
  }
  
  /* button - images */
  .flight-calculator-button-flt{background-image:url(../img/button-flt.png);}
  .flight-calculator-button-plan{background-image:url(../img/button-plan.png);}
  .flight-calculator-button-up{background-image:url(../img/button-up.png);}
  .flight-calculator-button-calc{background-image:url(../img/button-calc.png);}
  .flight-calculator-button-timer{background-image:url(../img/button-timer.png);}
  .flight-calculator-button-back{background-image:url(../img/button-back.png);}
  .flight-calculator-button-star{background-image:url(../img/button-star.png);}
  .flight-calculator-button-square{background-image:url(../img/button-square.png);}
  .flight-calculator-button-wb{background-image:url(../img/button-wb.png);}
  .flight-calculator-button-set{background-image:url(../img/button-set.png);}
  .flight-calculator-button-m{background-image:url(../img/button-m.png);}
  .flight-calculator-button-setunit{background-image:url(../img/button-setunit.png);}
  .flight-calculator-button-down{background-image:url(../img/button-down.png);}
  .flight-calculator-button-convunit{background-image:url(../img/button-convunit.png);}
  .flight-calculator-button-divide{background-image:url(../img/button-divide.png);}
  .flight-calculator-button-c{background-image:url(../img/button-c.png);}
  .flight-calculator-button-7{background-image:url(../img/button-7.png);}
  .flight-calculator-button-8{background-image:url(../img/button-8.png);}
  .flight-calculator-button-9{background-image:url(../img/button-9.png);}
  .flight-calculator-button-x{background-image:url(../img/button-x.png);}
  .flight-calculator-button-bksp{background-image:url(../img/button-bksp.png);}
  .flight-calculator-button-4{background-image:url(../img/button-4.png);}
  .flight-calculator-button-5{background-image:url(../img/button-5.png);}
  .flight-calculator-button-6{background-image:url(../img/button-6.png);}
  .flight-calculator-button-minus{background-image:url(../img/button-minus.png);}
  .flight-calculator-button-colon{background-image:url(../img/button-colon.png);}
  .flight-calculator-button-1{background-image:url(../img/button-1.png);}
  .flight-calculator-button-2{background-image:url(../img/button-2.png);}
  .flight-calculator-button-3{background-image:url(../img/button-3.png);}
  .flight-calculator-button-plus{background-image:url(../img/button-plus.png);}
  .flight-calculator-button-plusminus{background-image:url(../img/button-plusminus.png);}
  .flight-calculator-button-decimal{background-image:url(../img/button-decimal.png);}
  .flight-calculator-button-0{background-image:url(../img/button-0.png);}
  .flight-calculator-button-root{background-image:url(../img/button-root.png);}
  .flight-calculator-button-equals{background-image:url(../img/button-equals.png);}
  
  /* button - positioning */
  .flight-calculator-button-row-1{top:0px;}
  .flight-calculator-button-row-2{top:50px;}
  .flight-calculator-button-row-3{top:100px;}
  .flight-calculator-button-row-4{top:150px;}
  .flight-calculator-button-row-5{top:200px;}
  .flight-calculator-button-row-6{top:250px;}
  .flight-calculator-button-row-7{top:300px;}
  .flight-calculator-button-column-1{left:0px;}
  .flight-calculator-button-column-2{left:58px;}
  .flight-calculator-button-column-3{left:116px;}
  .flight-calculator-button-column-4{left:174px;}
  .flight-calculator-button-column-5{left:232px;}