#ctrl-banner-verano{
  /*background-image: url('https://www.buk.cl/hubfs/banner-ebooks.jpg');  */     
    height: auto;
    background-size: cover;
    background-repeat: no-repeat ;
    background-attachment: scroll ;
    background-position: center center ;
    z-index: auto;
  padding-top:50px;
  margin-bottom:120px;
  background-color: #f4f7fe;
    padding-bottom: 40px;
        }
        
        .container-banner{
            margin-top:40px;
        }

        .container-banner h1{
            color: #2f48a7;
            font-size: 34px;
          margin-top:20px;
        }

        .container-banner p{
            color:#354256;
            width: auto;
            margin-top: 20px;
            font-size: 16px;
        }

        .container-banner .oferta{
            color: white;
            text-decoration: none;
            background-color: #2f48a7;
            padding: 10px 15px;
            width: fit-content;
            margin-top: 30px;
            font-weight: bold;
            border-radius: 22px;
           border: solid 2px #2f48a7;
          letter-spacing: 1.2px;
        }

        .container-banner .oferta:hover{
            color: #2f48a7;
            background-color: white!important;
            transition: .3s;
            
        }
.container-banner .destacado{
            color: white;
            background-color: #2f48a7;
            padding: 5px 10px;
            width: fit-content;
            margin-top: 20px;
            font-weight: bold;
            letter-spacing: 1.2px;
}
.img-container {text-align:center;width:80%;margin: auto;}
.img-container img{width:100%;box-shadow: -10px 10px 15px rgb(0 0 0 / 20%);}

@media only screen and (max-width: 767px) {
#ctrl-banner-verano{background-position: unset;background-position-x: -100px;!important}
#ctrl-banner-verano .container-banner {padding-top: 50px;padding-left: 0;width: 90%;margin: auto;text-align: center;}
  .container-banner p{width:auto;}
  .container-banner .oferta{margin:50px auto;}
  .flex{display: flex;flex-direction: column-reverse;}
}