h1 {
    color: red;
    text-align: center;
    text-shadow: yellow 6px 5px;
    text-transform: uppercase;
}
h1 {
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}
p.intro {
    border: black 10px solid;
    border-radius: 30px;
    margin-left: 25%;
    margin-right: 25%;
    padding: 20px;
    background-color: white;
}
p.estilo-1 {
    border: hsl(17, 100%, 25%) 20px solid;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 20px;
    margin-right: 50%;
    padding: 10px;
    background-color: hsl(17, 50%, 45%);
    color: white;
}
p.estilo-2 {
    border: hsl(34, 100%, 25%) 15px solid;
    border-top-right-radius: 15px;
    border-bottom-right-radius: 15px;
    margin-left: 50%;
    padding: 5px;
    background-color: hsl(34, 50%, 45%);
    color: white;
 }  
p.estilo-3 {
    border: hsl(207, 50%, 45%) 5px dashed;
    margin-left: 25%;
    margin-right: 25%;
    padding: 20px;
    background-color: hsl(207, 100%, 25%);
    color: white;
}