body {
  background-color: #ffe97a;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

#matriz {
  text-align: center;
}

#matriz2 {
  text-align: center;
  padding: 0px;
}


header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
}

h2{
    text-align: center;
    padding: 70px;
    margin-bottom: -60px; 
}

#matrix {
  border: 0px solid red;
  margin: 0 auto;
  padding: 100px;
  margin-bottom: -150px; 
}

#matrix2 {
  border: 0px solid red;
  margin: 0 auto;

}

#matrix2 button {
  height: 50px;
  width: 130px;
  border: 2px solid black;
  font-family: helvetica;
  font-size: 14px;
  text-decoration: none;
  transition-duration: 0.5s;
  border-radius: 18px; /* Esquinas redondeadas */
}

#matrix4 {
  border: 0px solid red;
  margin: 0 auto;
  padding: 30px;
}

#matrix4 button {
  height: 50px;
  width: 600px;
  border: 2px solid black;
  font-family: helvetica;
  font-size: 14px;
  text-decoration: none;
  transition-duration: 0.5s;
  border-radius: 18px; /* Esquinas redondeadas */
}

#matrix3 tr, td {
  padding: 10px;
}

#matrix button {
  height: 50px;
  width: 600px;
  border: 3px solid black;
  font-family: helvetica;
  font-size: 14px;
  text-decoration: none;
  transition-duration: 0.5s;
  border-radius: 18px; /* Esquinas redondeadas */
}


#b1 {
  background-color: #ffe97a;
}

#b1:hover {
  cursor: pointer;
  color: #421e1e;
  background-color: #ede3b6;
  transform: scale(0.85); /* Aumenta ligeramente el tamaño */
}

#b2 {
  background-color: #ffe100;
}

#b2:hover {
  cursor: pointer;
  background-color: #f2ffb3;
  transform: scale(0.85); /* Aumenta ligeramente el tamaño */
}

#b3 {
  background-color: #ffe97a;
}

#b3:hover {
  cursor: pointer;
  color: #ffffff;
  background-color: #ff0000;
  transform: scale(0.85); /* Aumenta ligeramente el tamaño */
}


footer {
   position: absolute;
   left: 0;
   bottom: 400;
   width: 100%;
   height:300px;
   background-color: #04384a;
   color: white;
   text-align: center;
   font-size: 12px;
   }
   
 #frameHTML {
  margin: 0 auto;
  width: 800px;
  height:100px;
  border: none;
  padding: 0px;
}