styles.css

body {
  margin: 0;
  background: #121212;
  background-image: url(welcome_bg.jpg);
  background-size: cover;
  background-position: center;
}

.loader-cont {
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  width: 85px;
  height: 85px;
  position: absolute;
  z-index: 2;
  margin: 65vh auto auto auto;
  overflow: hidden;
  padding: auto;
  border: none;
  -webkit-animation: fade-in 1.2s cubic-bezier(0.390, 0.575, 0.565, 1.000) 0.5s both;
  animation: fade-in 1.2s cubic-bezier(0.390, 0.575, 0.565, 1.000) 0.5s both;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

.title {
  margin: auto;
  color: #fff;
  font-size: 32px;
  line-height: 40px;
}

.subtitle {
  color: #fff;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  margin-top: 24px;
}

@-webkit-keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.lds-dual-ring {
  display: inline-block;
  width: 80px;
  height: 80px;
}

.lds-dual-ring:after {
  content: " ";
  display: block;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 6px solid #fff;
  border-color: #fff transparent #fff transparent;
  animation: lds-dual-ring 1.2s linear infinite;
}

@keyframes lds-dual-ring {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.logo {
  position: absolute;
  top:0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 25vw;
  background: url("nostv.svg");
  background-repeat: no-repeat;
  -webkit-background-origin: padding-box;
  background-origin: padding-box;
  -webkit-background-clip: border-box;
  background-clip: border-box;
  -webkit-background-size: 90% 90%;
  background-size: 90% 90%;  
  -webkit-animation: fade-in 1.2s cubic-bezier(0.390, 0.575, 0.565, 1.000) 0.3s both;
	animation: fade-in 1.2s cubic-bezier(0.390, 0.575, 0.565, 1.000) 0.3s both;  
}