ul.main-navigation a {
   padding: 10px 8px;
}

p.site-description {
    font-size: 0.77rem;
}

h1.site-title {
   background-image: url(http://dnyzdravi.eu/wp-content/uploads/2017/10/cropped-LOGO_dny-2.jpg);
   background-repeat: no-repeat;
}
h1.site-title a {
    width: 246px;
    height: 37px;
}