* {
    box-sizing: border-box;
    list-style: none;
    margin: 0;
    padding: 0;
}
#carreras{
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    width: 95%;
    margin: 100px auto 0;
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    
}
.cuadrados {
        list-style: none;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-flex-flow: row wrap;
        max-width: 680px;
        padding-bottom: 30px;
        padding-top: 0px;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
     }
    .flex-item {
  
        width: 170px;
        height: 170px;
        color: black;
    }
@media screen and (max-width:48em) {
    #carreras{
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    }

    .conjunto{
        width: 100%;
    }
    .cuadrados {
        list-style: none;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-flex-flow: row wrap;
        max-width: 680px;
        padding-bottom: 30px;
        padding-top: 0px;
        -ms-flex-wrap: wrap;
            flex-wrap: wrap;
        -webkit-box-pack: center;
            -ms-flex-pack: center;
                justify-content: center;
        
    }
    .flex-item {
  
        width: 170px;
        height: 170px;
        color: black;
        
    }
}
.bannerheader{
    
    height: 170px;
    width: 100%;
    max-width: 680px;
  
}
    
.elige{
    text-align: right;
    padding-right: 10px;
}
.flex-item a{
    color: black;
}   
.contenedor{
width: 170px;
color: black;

      
}
.cbc{
    background-color: #59B6A7;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
    
}
.arq{
    background-color: #ED1C24;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
    }
.dg{
    background-color: #F29421;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
}
.diyt{
    background-color: #FFF200;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
}
.diys{
    background-color: #502A75;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
}
.di{
    background-color: #8DC63F;
    width: 170px;
    height: 170px;
    padding: 30px;
    text-align: center;
}
.paisaje{
    background-color: #EB1E61;
    width: 170px;
    height: 170px;
    padding-top: 30px;
    text-align: center;
}
.grey{
    background-color: #C7C8CA;
    width: 170px;
    height: 170px;
    padding: 10px;
    text-align: center;
}
    

#derecha{
    width: 40%;
       
}
   
.cuatrimestre{
    width: 400px;
    height: 170px;
    padding-top: 10px;
    padding-left: 10px;
    
    font-weight: 700;
    color: white;
    background-color: black;
    
    
}
.bannerright{
    width: 400px;
    height: 90px;
    background-color: #A3DEF5;
    padding-left: 30px;
    margin-top: 30px;
    padding-top: 5px;



}
.examenes{
    width: 400px;
    height: 90px;
    background-color: #A3DEF5;
    margin-top: 10px;   
    padding-top: 0.5px;
    padding-left: 30px;
}
.preguntas{
    width: 400px;
    height: 90px;
    background-color: #A3DEF7;
    margin-top: 30px;
   
    padding-left: 10px;
    padding-top: 20px;
    text-align: center;
    
}
     
    
     
h5{
    padding-top: 10px;
}