h1 {
    font-size:40px;
}
h2 {
    font-size: 32px;
}
h3 {
    font-size: 28px;
}

html {
    background-color: #3D3D3D;
    color: #ffffff;
    font-family: 'Lato', Arial, sans-serif;
}

#heading {
    margin: 50px 0;
}
hr {
    max-width: 1000px;
}
.text-center {
 text-align: center;
}
.content {
    margin: 160px 0;
}

img {
    max-width: 100%;
}