.img-registro-btn{
    width: 30%;
}
@media screen and (min-width: 1200px) {
    html>body {
        font-size: 19px;
    }
}

@media screen and (min-width: 768px) and (max-width: 991px) {
    html>body {
        font-size: 13px;
    }
}

@media screen and (max-width: 780px) {
    html>body {
        font-size: 12px;
    }
    
    #home_content {
    text-align:center;
    position:relative;
    top: 2em;
    left: 0;
    margin: 0;
    height:auto;
    width:auto;
    }
    
    #contact {
    text-align:center;
    }
    
    #about {
    margin-bottom:4.568em;
    }
     #video_background{
        width: 100%;
    }
    #home_background{
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .row{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    #logo img {
        width: 90px;
    }


}

@media screen and (max-width: 480px) {
    html>body {
        font-size: 10px;
    }
    p, a {
        font-size: 1.3em;
    }
    #logo_header {margin-bottom:2em }

    #counter_box {
        margin-bottom:2em;
        width: 100%;
    }
    .row{
    margin-left:0;
    }
    #video_background{
        width: 100%;
    }
    .txt-land p{
        padding: 0;
        font-size: 1.3rem;
    }
    .caja-fechas img{
        width: 80%;
    }
    .img-registro-btn{
        margin-top: 1rem;
        width: 50%;
    }
    .orga-first p{
        letter-spacing: 8px;
    }
    .botones a{
        margin: 0 5px;
        width: 35%;
    }
    #home{
       background: url(../images/header_movil3.jpg) ;
       background-repeat: no-repeat;
       background-attachment: fixed;
    }
    #home_content{
        top: 0em;
    }
    .bg-rojo-txt{
        background-image: url(../images/web-04.png);
        height: 12vh;
    }
    #logo {
        margin: 10px;
    }
    #logo img {
        width: 70px;
    }
    #logo-uca {
        margin: 10px;
    }
    #logo-uca img {
        width: 70px;
    }
    iframe{
        width: 100%;
        height: 100vh;
    }

}