main {
    position: relative;
    width: 100%;
    background: url("../images/background.png");
    background-size: 100%;
}

main h1 {
    text-align: center;
    margin: 0;
    margin-top: 10rem;
    font-size: 2.5rem;
    color: #fff;
}

/* Sections */
.sections {
    margin: 5rem 0;
}

section img {
    width: 75%;
    border-radius: 10px;
}

@media screen and (max-width: 768px) {
    section img {
        width: 100%;
    }
}