body{
    text-align: center;
    font-family: 'Open Sans',sans-serif;
    font-style: normal;
}
.logo {
    display: block;
    background: transparent url("../css/images/logo.png") top center no-repeat;
    background-size: auto 100%;
    width: 100%;
    max-width: 500px;
    height: 25vh;
    margin: 20px auto;
}