body {
 font-family: Arial, sans-serif;  
 font-weight: bolder;
 background-color: silver;
}

#mainTable {
 margin-left: auto;
 margin-right: auto;
 margin-bottom: 5px;
 width: 900px;
 height: 500px;
 border-collapse: collapse;
 background-color: #008098;   
 color: #FFFFFF;  
}

.mytable {
  border: 3px solid white;
  color: white;
  text-align: left;
  margin-bottom:  5px;
}

.rundisplay {
  border: 3px solid white;
  text-align: center;
  width: 10em;
  margin-left: auto;
  margin-right: auto;
  margin-top: 0.5em;  
  padding-top: 1em;
  padding-bottom: 1em;
}
 
.errtable {
  position:relative;  
  border: 3px solid white;
  background-color: red;
  color: white;
  text-align: center;
  margin-left: 1em;
  max-width: 19em;
  height: 4em;     
}

.pic-container{
  width: 600px;
  height: 370px;
  position: relative;
  margin-left: auto;  
  margin-right: auto;
}

hr {
 color: white;   
}