h1,
h2,
h3,
h4,
h5,
h6 { 
font-family: "sourcesanspro";
font-weight: 300;
}
h1 {
font-size: 45px;
line-height: 55px;
}
h2 {
font-size: 30px;
line-height: 38px;
}
h3 {
font-size: 25px;
line-height: 30px;
}
h4 {
font-size: 18px;
line-height: 26px;
}
h5 {
font-size: 16px;
line-height: 22px;
}
body {
font-size: 16px;
line-height: 22px;
}