*{
    box-sizzing: border-box;
}

body{
    background-image: url("../img/fondo_einstein.jpg");
    display: flex;
    flex-wrap: wrap;
}

h1{
    background-image: url("../img/titulo.jpg");
    width: 100%;
    text-align: center;
    color: white;
}

p{
    width: 100%;
    background-color: white;
    font-size: 1.2em;
    text-align: justify;
    padding: 10px;
    text-indent: 50px;
}

img{
    border: 10px solid darkgoldenrod;
    width: 20%;
    margin: 10px auto;
}

p:nth-child(4), p:nth-child(6){
    background-color: chartreuse;
}

p:first-of-type{
    background-color: red;
}

p:nth-of-type(5){
    background-color: aqua;
}

p:last-of-type{
    background-color: forestgreen;
}