@media (max-width: 730px){
    
    #header img{
        margin-top: 11px;
    }

    #header .list{
        display: none;
    }
   
   .banner{
        margin: 0px auto;
        padding: auto;
        animation:introduction-GB 1s linear both
   }

    @keyframes introduction-GB{
    0%{
        letter-spacing: .2em;
        transform:translateZ(-500px) translateY(-100px);
        opacity:0}
    40%{opacity:.6}
    100%{
        transform:translateZ(0) translateY(0);
        opacity:1}}
   
   .banner h1{
        font-size: 30px;
   }

   #header .button{
        display: block;
        float: right;
        margin-right: 30px;
        width: 50px;
        height: 50px;
        /*box-shadow: 0px 0px 3px blue, 0px 0px 3px black;*/
        background-color: transparent;
        cursor: pointer;
        border: none;
        color: black;
   }

   #header .button:hover{
        color: white;
   }

   #header .button-list{
        width: 60px;
        height:40px;
   }

   #header .nav{
        display: none;
        flex-flow: column wrap;
        width: 105%;
        min-height: 200px;
        z-index: 20;
        background-color: rgb(226, 224, 224);
        margin-top: 2px;
        justify-content: center;
        align-items: center;
        margin-left: -20px;
   }

   #header .nav.activo{
        display: flex;
   }

    .nav ul{
        display: flex;
        flex-flow: column wrap;
        list-style: none;
        row-gap: 25px; 
   }

   .nav a{
        text-decoration: none;
        color: rgb(7, 7, 7);
        font-size: 20px;
        font-weight: bolder;
   }
   .nav a:hover{
        color: rgb(255, 0, 0);
   }

   /* PROFESOR */

 div.profesor-data{
     flex-wrap: wrap;
     width: 100%;
     font-size: 14px;
 }

 .profesor-data ul {
     margin-left: 30px;
     margin-top: 40px;
 }
 
   /* FOOTER */
   
   .rrss{
    width: 100%;
    height: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
   }

   #location{
     width: 100%;
     display: flex;
     flex-wrap: wrap;
     align-items: center;
     justify-content: center;
   }

   div.rrss{
     width: 100%;
     margin-bottom: 60px;
    
   }

   div.rrss img{
     width: 60%;
     
   }

   div#location{
     width: 100%;
     margin-bottom: 50px;
   }

   div#location iframe{
     width: 80%;
     height: 400px;
   }

   #footer h5{
     margin-top: 20px;
   }

}