body{
    background:darkturquoise;

}
#contenedor-header {
    background : black;
    border-radius: 20px;
    padding : 15px;
    display : flex;
    color:white;
}
#header-titulos{
    width : 75%;
    text-align: center;
    font-size:30px;
    color:azure;
}

#navega {
    background:black;
}

nav ul {
  display: flex;
  justify-content: center;
  padding :15px;
color:azure;
}
img{
 display:block;
margin:auto;