.horarios {
  text-align: center;
  padding: 15px 0px;
  span {
    font-size: 25px;
    margin: 0px 20px;
    b {
      font-size: 30px;
      margin-right: 5px;
    }
  }
}
@media only screen and (max-width: 751px) {
  .horarios{
    padding: 5px 0;
  }
  .horarios span{
    font-size: 19px;
  }
}

.semana{
  margin: 20px auto 0px auto;
  max-width: 1200px;
  .lunes,.martes,.miercoles,.jueves,.viernes {
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    column-gap: 5px;
    margin-bottom: 10px;
    font-size: 20px;
  }

  .dia{
    box-shadow: 0 0 0 2px #D16252 inset;
    color: #bdbdbd;
    border-radius: 5px;
  }
  .activo {
    background-color: #D16252;
    color: #1d1d1d;
    border-radius: 5px;
  }

  /*Asignatura 1: [Algebra]*/
  .a1 {
    background-color: #6F51D0;
    color: #1d1d1d;
    border-radius: 5px;
  }
  /*Asignatura 2: [EsD]*/
  .a2 {
    background-color: #D0517C;
    color: #1d1d1d;
    border-radius: 5px;
  }
  /*Asignatura 3: [OrC]*/
  .a3 {
    background-color: #8AD051;
    color: #1d1d1d;
    border-radius: 5px;
  }
}
@media only screen and (max-width: 751px) {
  .semana {
    margin: 5px auto 0px auto;
    min-width: 400px;
    padding: 10px;
    .lunes,.martes,.miercoles,.jueves,.viernes {
      font-size: 15px;
    }
  }