#apps h3{
    
    color: #fff; 
    font-size: 20px; 
    margin-top: 20px;
    text-align: center;
}

#apps .aplicacion_movil{
    
    display: flex;
    justify-content: center;
}

.aplicacion_movil figure {
    
    width: 150px; 
    height: 90px; 
    margin-right:20px;
    
}

@media only screen and (max-width: 750px){
    
    #apps{
    
       margin-top: 20px;
    }
    
    #apps h3{
       
       text-align: center;
    }
    
    #apps .aplicacion_movil{
    
    justify-content: center;
    }
}