#title-slide {
    .title { color: #2c3e50; font-family: "Fira Sans", sans-serif; font-weight: 600; }
    .subtitle { color: #3498db; font-weight: 600;}
    .author { color: #95a5a6; letter-spacing: 0.03em; }
}

h1.title {
  background-image: url(dog-cartoon-struphy.jpg), url(MPI_PP_Logo_Vertical_cmyk-crop.jpg);
  background-repeat: no-repeat;
  background-position: 5% -14%, 97% 5%;
  background-size: 170px, 202px;
}

h2 {
    color: #2c3e50 !important;
}

.MathJax {
    font-size: 80% !important;
}