div#phet{
  margin: 20px auto 20px;
  width: 720px;
  height: 440px;
}

/* Schaltknopf */
  
button {
  height: 30px;       
  border-radius: 0px;
  border-style: outset;
  border-width: 2px;
  margin-left: 10px;
  font: bold 12px sans-serif;
  width: 200px;
  } 

/* Gesamte App */
   
div#total {
  position: relative;
  margin: 20px auto 20px;
  width: 720px; 
  height: 440px;
  }
  
/* Zeichenfläche */

div#canvas {
  position: absolute;
  background-color: #ffff00;
  border: 1px solid #000000;
  width: 500px; 
  height: 440px;
  }
  
/* Schaltfläche */
  
div#panel, div#panel1, div#panel2 {
  position: absolute;
  background-color: #00ff00;
  border: 1px solid #000000;
  font: bold 12px sans-serif;
  left: 500px; 
  width: 220px; 
  height: 440px;
  }
  
/* Zeile einer Schaltfläche */
  
div#panel div , div#panel1 div, div#panel2 div {
  position: absolute;
  }
  
/* Optionsfeld */

input[type="checkbox"] {
  margin-left: 10px;
  border-radius: 0px; 
  }
  
/* Radiobutton */

input[type="radio"] {
  margin-left: 10px;  
  }
  
/* Schieberegler */

input[type="range"] {
  position: absolute;
  left: 10px;
  }
  
/* Eingabefeld */

input[type="text"] {
  position: absolute;
  padding-left: 2px;
  height: 14px;
  border-radius: 0px;
  border-color: #000000;
  border-width: 1px;
  font: bold 12px sans-serif;
  left: 60px; 
  width: 80px;
  } 
  
/* Text für Optionsfeld oder Radiobutton */
  
label {
  margin-left: 5px;
  vertical-align: 2px;  
  }
  
/* Auswahlfeld */

select {
  position: absolute;
  top: -3px;
  left: 10px;
  height: 20px;
  border-radius: 0px;
  font: bold 12px sans-serif;
  } 
  
/* Inline-Element (span) innerhalb einer Schaltfläche */
  
div#panel span, div#panel1 span, div#panel2 span {
  position: absolute;
  white-space: nowrap;
  font: bold 12px sans-serif;
  }
  
/* Textbereich */

textarea {
  position: absolute;
  padding: 3px;
  left: 10px;
  border-radius: 0px;
  font: bold 12px sans-serif;
  line-height: 1.25;
  width: 185px; 
  height: 70px; 
  padding: 3px; 
  font: bold 12px monospace;
  }

  .pos1 { left: 10px; }
  .pos3 { left: 160px; }