.contenedor{

    justify-content: left;
    display: flex;
    position: relative;
    padding-left: 20px;
    gap: 60px;
    height: 150px;
   
}

#titulo{
    text-align: center;
}
body{
    background: url("fondo.jpg");
    position: relative;
}

body::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(250, 250, 250, 0.884); 
    z-index: -1;
}

#imagen1{
    width: 300px;
}
.contenedor img{
    width: 200px;

}
main{
    flex: 1;
}
.contenedor figcaption{
    position: absolute;
    bottom: 0;
}

.contenedor-principal{
    display: flex;
}

aside img{

    height: 450px;
}

aside figcaption{
    text-align: center;
}