.proptech_logo {
  display: inline-grid;
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  padding-top: 10vh;
  text-align: center;
}

#conferences_logo {
  padding-top: 50vh;
}

.proptech_logo img {
  width: calc(14vh + 14vw)
}

.proptech_logo a {
  font-size: calc(.2vw + 1.5vh + 2px);
  font-family: 'Lato', sans-serif;
  text-transform: uppercase;
  color: white;
  text-shadow: 0 0 5px black,
               0 0 10px black,
               0 0 15px black;
  transition: .2s;
}

.proptech_logo a:hover {
  transform: scale(1.2);
}

.proptech_logo a b {
  text-transform: none;
}

@media screen and (max-width: 130vh) {
  .proptech_logo, #conferences_logo {
    display: inline-grid;
    width: 100%;
    height: 30vh;
    position: relative;
    place-items: center;
    text-align: center;
    padding-top: 0;
    margin-bottom: 15%;
  }
}