server/static/assets/main.css

html {
  overflow-y: scroll;
}

body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
}

.container {
  width: 60%;
  margin: 0 auto;
}

a {
  color: #3498db;
}

a:hover {
  text-decoration: underline;
  /*opacity: 0.8;*/
  transition: color 0.2s;
  color: #2980b9;
}

/* sticky footer */
html, body {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
}
.up-footer {
  flex: 1 0 auto;
}
.sticky-footer {
  flex-shrink: 0;
}

/* Porposed alert */
.proposed-alert {
  position: fixed;
  z-index: 9999999;
  left: 1em;
  bottom: 2em;
  padding: 1em;
  font-weight: bold;
  border-radius: 3px;
  text-transform: uppercase;
  border: 1px solid #c0392b;
  background-color: #e74c3c;
  color: white;
}

.btn {
  padding: .5em 1em;
  color: white;
  border-radius: 7px;
  background: #2c3e50;
  border: 0;
}

.btn:focus {
  outline: 0;
  opacity: 0.8;
}

@media (max-width: 1600px) {
  .container {
    width: 70%; 
  }
}

@media (max-width: 1500px) {
  .container {
    width: 80%; 
  }
}

@media (max-width: 900px) {
  .container {
    width: 92%; 
  }
}