body{
    background-color: white; 
    color: black;
}

.CajaHead{
      width: 220px;
      box-align:center;
      border-radius: 15px; 
      padding-top: 5px;
      padding-right: 1px;
      padding-bottom: 1px;
      padding-left: 5px;
      margin: auto auto 3em auto;
      box-shadow: 0 0 5px 5px #888;
      background: black;
      text-align: Justified;
}

.CajaCalc{
      width: 220px;
      box-align:center;
      border-radius: 15px; 
      padding-top: 5px;
      padding-right: 1px;
      padding-bottom: 1px;
      padding-left: 5px;
      margin: auto auto 3em auto;
      box-shadow: 0 0 5px 5px #888;
      background: black;
      text-align: center;
}

.cajaTexto {
      width: 90%;
      box-align:center;
      border-radius: 0px; 
      border-color: lightwhite; 
      padding: 0px;
      margin: 0px;
      background: white;
      text-align: left;
      font-size: 1em;
}

.botonOperacion1{
  width: 45px;
  color: red;
  font-size: .6em;
  display: inline-block;
  border: 3px solid gray;
  padding: 0px 12px;
  line-height: 22px;
  border-radius: 10px;
  background-color: black;
}

.botonBL{
  color: red;
  font-size: .9em;
  display: inline-block;
  border: 3px solid gray;
  padding: 0px 17px;
  line-height: 20px;
  border-radius: 15px;
  background-color: black;
}


.boton{
     font-size: .9em;
     color: white;
     display: inline-block;
     border: 3px solid gray;
     padding: 0px 17px;
     line-height: 20px;
     margin-left: 1px;
     margin-right: 1px;
     border-radius: 15px;
     background-color: black;
}

.botonIgual{
     font-size: .9em;
     color: red;
     display: inline-block;
     border: 3px solid gray;
     padding: 0px 30px;
     line-height: 30px;
     border-radius: 15px;
     background-color: black;
}


.tablaOP1{
     margin: 1px;
     display: inline-block;
     border: 1px solid gray;
     padding: 5px 5px;
     border-radius: 10px;
     background-color: black;
 }

.tablaOP2{margin: auto; }

 h1{ font-size: 12px; color: grey; }   
 p { background: black; color: black; }
 p1{ font-size: 14px; text-align:center; color: gray; }