html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0}img,obj,video,embed{max-width:100%}

.libros{
    width: 100%;
    margin-top: 60px;
    margin-bottom: 60px;
}
.libros .lib{
    width: 80%;
    margin:auto;
    display: flex;
    justify-content: center;
    flex-direction: column;
}
h1{
    font-size: 50px;
    font-weight: 400;
    color: black;
    text-align: center;
    margin: 20px 0;
}
h2{
   font-size: 30px; 
   font-weight: 400;
    color: black;
    text-align: center;
    margin: 40px 0; 
}
.libros .lib p{
    text-align: left;
    font-size: 17px;
    color:black;
    line-height: 35px;
    margin:10px 0px;
}
.botonNiveles{
    width:95%;
    margin:60px auto;
    display: flex;
    flex-wrap:wrap;
    justify-content: space-between;
}
.botonNiveles1{
  width:100%;
  display:flex;
}
.botonNiveles button{
  margin:20px auto;
    background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  border-radius:8px;
  cursor:pointer;
 -webkit-box-shadow: 2px 3px 0px #848484;
  box-shadow: 2px 3px 0px #848484;
}

.botonNiveles button:active{
	-webkit-transform:scale(0.95);
	    -ms-transform:scale(0.95);
	        transform:scale(0.95);
	}
.librosRecomendados{
    margin-top: 40px;
    display: flex;    
}
.imagenlibro a img{
    max-width: 195px;
}
.libroReaderTrimestre a{
    text-decoration: none;
}
.libroReaderTrimestre{
    width:95%;
    margin:0 2.5%;
    font-size:25px;
    text-align:justify;
    
}
.libroReaderTrimestre a p.TituloLibro{
    font-size:25px;
    
}
.libroReaderTrimestre p.reader,.libros .lib p.reader{
    font-size: 25px;
    font-weight: 400;
    color: black;
    text-align: center;
    margin:  auto;
}
#A,#A1,#A2,#B1,#B2,#C1,#C2,#j,#k,#l,#m,#n{
    display:none;
}