* {
  box-sizing: border-box;
}

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


#contenedor {
  width: 80%;
  margin: 30px auto;
  background-color: gray;
  border: 2px solid black;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;

}


#titulo {
  width: 100%;
  height: 100%;
  background-color: lightgray;
  text-align: left;
  padding: 10px;
  margin: 0;
}


#bloque1 {
  display: flex;            
  justify-content: space-between;
  background-color: gray;
  padding: 20px;
}

#bloque2 {
  width: 30%;
  padding: 20px;
  font-weight: bold;
  text-align: center;
  border: 1px solid black;
}

#bloque3 {
  background-color: #ffffcc; 
  width: 30%;
  padding: 20px;
  font-weight: bold;
  text-align: center;
  border: 1px solid black;
}