.calculadora input.largo { color: red; width: 85px; height:40px; margin-left:30px; }
.calculadora {
  /* w:298 x h:397 pt */
  width: 380px;
  height: 497px;
  background-color: rgba(255,255,255,0.3);
  color: white;
  font-family: Helvetica;
  margin-top:5px;
  box-shadow:4px 4px 3px 3px #888888;
  
}

#textoPantalla {
  /* h: 98 pt */
  width:350px;
  height: 48px;
  background-color: #4A5559;
  font-size: 25px;
  text-align: right;
  padding-right:0px;
  padding-top:10px;
  margin-top:10px;
  
  border: 2px green solid; 
  position: relative; 
  left: 20px; 
  overflow: hidden;
  
}
.calculadora [type=button]{
/*   73 x 72 pt */
  width: 16%;
  height: 65px;
  border: 1px solid #789198;
  background-color: rgba(255,255,255,0.3);
  color: black;
  font-size: 20px;
  margin-left:7px;
  transition: all 0.2s ease;
  border-radius: 5px;
  
}
.calculadora [type=button]:hover {
background: rgba(0,0,0,0);
color: #3a7999;
box-shadow: inset 0 0 0 3px #3a7999;
}