body {
  min-width: 320px;
}
.top-container {
  margin-top: 50px;
}
.hero-unit {
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}
.hero-unit h1 {
  margin-bottom: 9px;
  font-size: 81px;
  font-weight: bold;
  letter-spacing: -1px;
  line-height: 1;
}
.hero-unit p {
  font-weight: normal;
  font-size: 17px;
}
.logo {
  max-height: 200px;
  margin-bottom: 40px;
}
.tagline {
  font-weight: normal;
  font-size: 26px;
}
.download-info {
  margin-top: 25px;
  line-height: 36px;
}
.jumbo-button {
  font-size: 24px;
  font-weight: normal;
  padding: 14px 24px;
  margin: 7px 7px 7px 0;
  -webkit-border-radius: 6px;
     -moz-border-radius: 6px;
          border-radius: 6px;
}
.jumbo-button small {
  font-size: 14px;
  color: #ccc;
}
p.older-versions {
  font-size: 14px;
}
.footer {
  padding: 20px 0;
  border-top: 1px solid #e5e5e5;
}
.footer p {
  margin-bottom: 0;
  color: #555;
}

.navbar .addthis_toolbox {
  position: absolute;
  top: 10px;
  right: 39px;
}

/* Responsive */
@media (max-width: 480px) {
  .top-container {
    margin-top: 25px;
  }

  .hero-unit h1 {
    font-size: 36px;

  }
  .hero-unit h2 {
    font-size: 20px;
  }

  .hero-unit p {
    font-size: 16px;
  }
}

@media (min-width: 480px) and (max-width: 768px) {
  .top-container {
    margin-top: 40px;
  }
  
  .hero-unit h1 {
    font-size: 54px;
  }
  .hero-unit h2 {
    font-size: 22px;
  }
}

@media (max-width: 768px) {
  .hero-unit p {
    margin-right: 0;
    margin-left: 0;
  }
  .hero-unit {
    padding: 40px;
  }
  .logo {
    display: block;
    margin: 0 auto 30px auto;
  }
  .details {
    text-align: center;
  }
  .jumbo-button {
    margin-left: 10px;
  }
}


@media (min-width: 768px) and (max-width: 980px) {
  .top-container {
    margin-top: 45px;
  }
  .hero-unit h1 {
    font-size: 72px;
  }
  .hero-unit h2 {
    font-size: 24px;
  }
}

@media (max-width: 979px) {
  .navbar .addthis_toolbox {
    display: none;
  }
}