@media (max-width: 767.98px) {

    .carrousel_size{
      width:575px;
      max-height: 192px;
    }
  
      .info_div:hover > .show_div{
          position: relative;
          left: 0;
      }
  
      .contenedor_principal{  
        margin-top: 172px;
      }
  
      .banner_sticky{
          top:219px; 
        }
       
      .navbarIconos{
          color: white;
      }
  
      .information_books{
          height: 400px;
          overflow-y: auto;
        }
  
        .books_container{
          height: 440px;
        }
      
      .label_busqueda{
        text-align: start;
        padding-bottom: 0;
      }
  
      .background_busqueda{
        background: rgb(13,0,43);
        background: linear-gradient(326deg, rgba(13,0,43,1) 0%, rgba(51,0,139,1) 48%, rgba(31,106,247,1) 100%);
      }
  
      .formulario_avanzado{
        background: rgba(255, 255, 255, 0.2);
        border-radius: 12px;
      }
  
      .topnav a.icon {
        display: block;
        margin: 0 8px 4px 8px;
      }
  
      .main_title{
        font-size: 1.5em;
      }
  
  }
  
  @media (max-width: 575px) {
    
    .contenedor_principal{
      margin-top: 207px;
     }

    .carrousel_size{
      max-width:100vw;
      height: auto;
      max-height: 30vh;
    }
     
  }
  
  
  @media (max-width: 330px) {
  
      .contenedor_principal{
       margin-top: 204px;
      }
      
  
  }