index.css

html, body {
  margin: 0; 
}

body {
  font: 13px Roboto, Meiryo, "Helvetica Neue", Arial, sans-serif;
  font-weight: 200;
  background-color: #333;
  color: #EEE;
  /*padding-bottom: 15%;*/
}

a {
  color: #EEE;
}

.cover {
  height: 100%;
  background-color: #000;
  background-position: bottom;
  background-image: url("./img/nimrod_welcome.svg");
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
}

.cover-logo {
  height: 100px;
  stroke: #DDD;
  fill: #DDD;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.contact {
  position: relative;
  height: 50%;
}

.contact-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.btn {
  border-color: #90ec79;
  border-width: 2px;
}

.footer {
  margin-top: 10em;
  position: relative;
  height: 4em;
}