styles.css

html,
body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  position: fixed;
  font-family: Lato;
}

button {
  background: none;
  outline: none;
  border: none;
  cursor: pointer;
  color: white;
}

:root {
  --margin: 16px;
  --border-width: 2px;
  --bg-color: #FEF4EA;
  --text-color: #6C1710;
  --border-color: #A70011;
}

/* This is style rule for the container of the contents */
#splash-page {
  width: 100%;
  height: 100%;
  top: 0px;
  left: 0px;
  position: fixed;
  z-index: 100;
  color: var(--text-color);
  /* you can modify the background here */
  background: var(--bg-color);
}
.inner-wrapper {
  width: calc(100% - (2*var(--margin)) - (2*var(--border-width)));
  height: calc(100% - (2*var(--margin)) - (2*var(--border-width)));
  margin: var(--margin);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-direction: column;
  outline: 5px solid var(--border-color);
  outline-offset: 3px;
  border: var(--border-width) solid var(--border-color);
  position: relative;
}

.inner-wrapper::before,
.inner-wrapper::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 66px;
}
.inner-wrapper::before {
  top: 0;
  left: 0;
  background: right / contain no-repeat url('./assets/img/corner-right.png'), left / contain no-repeat url('./assets/img/corner-left.png');
}
.inner-wrapper::after {
  bottom: 0;
  left: 0;
  background: right / contain no-repeat url('./assets/img/corner-right.png'), left / contain no-repeat url('./assets/img/corner-left.png');
  transform: rotate(180deg);
}
/* This is style rule for the button container */
.launch-button-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
}
#launch-button-text {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
#launch-button-text > img {
  max-width: 393px;
  width: 100%;
  height: auto;
  object-fit: contain;
}
#launch-button {
  display: flex;
  padding: 12px 40px;
  align-items: flex-start;
  background: var(--text-color);
  border-radius: 32px 0px;
  color: white;
  font-size: 20px;
  font-weight: 700;
  line-height: 24px;
  box-shadow:
    0 0 0 2px var(--bg-color),
    0 0 0 6px var(--text-color);
}
.qr-container {
  display: none;
}

/* ==========================================================================
  For desktop version
  ========================================================================== */

@media (min-width: 768px) {
  #splash-page {
    --margin: 34px;
    justify-content: center;
  }
  .launch-button-container {
    height: 100%;
  }
  #launch-button {
    display: none;
  }
  #launch-button-text {
    margin-bottom: 4vh;
    position: absolute;
    bottom: 0;
  }
  #launch-button-text > img {
    height: 16vh;
    max-height: 180px;
    width: auto;
  }
  .inner-wrapper {
    width: calc(100% - (2*var(--margin)) - (2*var(--border-width)));
    height: calc(100% - (2*var(--margin)) - (2*var(--border-width)));
    margin: var(--margin);
  }
  .inner-wrapper::before,
  .inner-wrapper::after {
    height: 14%;
    max-height: 144px;
  }
  .qr-container {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  .qr-container h1 {
    margin-bottom: 24px;
    font-size: 64px;
    font-weight: 700;
    line-height: 56px; /* 87.5% */
    letter-spacing: -0.64px;
  }
  .qr-container p {
    font-size: 20px;
    font-weight: 400;
    line-height: 84.5%;
    margin: 0 0 40px;
    position: relative;
  }
  .qr-container img {
    width: 125px;
    height: 125px;
  }

  #cookie-notice,
  #privacy {
    display: none;
  }
}
  
/* ==========================================================================
  Below are style rules for the loading state
  ========================================================================== */

#loading-spinner {
  margin: 5px auto 20px;
  height: 52px;
  min-height: 52px
}

#splash-page.started {
  animation: splash-hide 400ms ease-in-out forwards
}

#splash-page #loading-spinner {
  display: none
}

#splash-page.loading #launch-button {
  display: none
}

#splash-page.loading #loading-spinner {
  display: block
}

@keyframes splash-hide {
  from {
    transform: translateX(0%)
  }

  to {
    transform: translateX(-100%)
  }
}


/* ==========================================================================
  Below are style rules for the loading spinner
  ========================================================================== */
  
.sk-fading-circle {
  margin: 0 auto;
  width: 40px;
  height: 40px;
  position: relative
}

.sk-fading-circle .sk-circle {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0
}

.sk-fading-circle .sk-circle:before {
  content: "";
  display: block;
  margin: 0 auto;
  width: 15%;
  height: 15%;
  background-color: #40392D;
  border-radius: 100%;
  -webkit-animation: sk-circleFadeDelay 1.2s infinite ease-in-out both;
  animation: sk-circleFadeDelay 1.2s infinite ease-in-out both
}

.sk-fading-circle .sk-circle2 {
  -webkit-transform: rotate(30deg);
  -ms-transform: rotate(30deg);
  transform: rotate(30deg)
}

.sk-fading-circle .sk-circle3 {
  -webkit-transform: rotate(60deg);
  -ms-transform: rotate(60deg);
  transform: rotate(60deg)
}

.sk-fading-circle .sk-circle4 {
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg)
}

.sk-fading-circle .sk-circle5 {
  -webkit-transform: rotate(120deg);
  -ms-transform: rotate(120deg);
  transform: rotate(120deg)
}

.sk-fading-circle .sk-circle6 {
  -webkit-transform: rotate(150deg);
  -ms-transform: rotate(150deg);
  transform: rotate(150deg)
}

.sk-fading-circle .sk-circle7 {
  -webkit-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
  transform: rotate(180deg)
}

.sk-fading-circle .sk-circle8 {
  -webkit-transform: rotate(210deg);
  -ms-transform: rotate(210deg);
  transform: rotate(210deg)
}

.sk-fading-circle .sk-circle9 {
  -webkit-transform: rotate(240deg);
  -ms-transform: rotate(240deg);
  transform: rotate(240deg)
}

.sk-fading-circle .sk-circle10 {
  -webkit-transform: rotate(270deg);
  -ms-transform: rotate(270deg);
  transform: rotate(270deg)
}

.sk-fading-circle .sk-circle11 {
  -webkit-transform: rotate(300deg);
  -ms-transform: rotate(300deg);
  transform: rotate(300deg)
}

.sk-fading-circle .sk-circle12 {
  -webkit-transform: rotate(330deg);
  -ms-transform: rotate(330deg);
  transform: rotate(330deg)
}

.sk-fading-circle .sk-circle2:before {
  -webkit-animation-delay: -1.1s;
  animation-delay: -1.1s
}

.sk-fading-circle .sk-circle3:before {
  -webkit-animation-delay: -1s;
  animation-delay: -1s
}

.sk-fading-circle .sk-circle4:before {
  -webkit-animation-delay: -0.9s;
  animation-delay: -0.9s
}

.sk-fading-circle .sk-circle5:before {
  -webkit-animation-delay: -0.8s;
  animation-delay: -0.8s
}

.sk-fading-circle .sk-circle6:before {
  -webkit-animation-delay: -0.7s;
  animation-delay: -0.7s
}

.sk-fading-circle .sk-circle7:before {
  -webkit-animation-delay: -0.6s;
  animation-delay: -0.6s
}

.sk-fading-circle .sk-circle8:before {
  -webkit-animation-delay: -0.5s;
  animation-delay: -0.5s
}

.sk-fading-circle .sk-circle9:before {
  -webkit-animation-delay: -0.4s;
  animation-delay: -0.4s
}

.sk-fading-circle .sk-circle10:before {
  -webkit-animation-delay: -0.3s;
  animation-delay: -0.3s
}

.sk-fading-circle .sk-circle11:before {
  -webkit-animation-delay: -0.2s;
  animation-delay: -0.2s
}

.sk-fading-circle .sk-circle12:before {
  -webkit-animation-delay: -0.1s;
  animation-delay: -0.1s
}

@-webkit-keyframes sk-circleFadeDelay {

  0%,
  39%,
  100% {
    opacity: 0
  }

  40% {
    opacity: 1
  }
}

@keyframes sk-circleFadeDelay {

  0%,
  39%,
  100% {
    opacity: 0
  }

  40% {
    opacity: 1
  }
}


/* ==========================================================================
  Below are style rules for the loading helper texts
  ========================================================================== */

.loading-helper-title {
  display: block;
  text-transform: uppercase;
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: bold
}

#loading-helper {
  font-family: sans-serif;
  color: #fff;
  font-size: 12px;
  text-align: center;
  max-width: 250px;
  height: 0;
  position: relative
}

@keyframes fade-in {
  from {
    opacity: 0
  }

  to {
    opacity: 1
  }
}

@keyframes fade-out {
  from {
    opacity: 1
  }

  to {
    opacity: 0
  }
}

#loading-helper-1 {
  top: 0;
  opacity: 0
}

#loading-helper-2 {
  position: absolute;
  top: 0;
  opacity: 0
}

.loading-helper-1 #loading-helper-1 {
  animation: fade-in 750ms forwards
}

.loading-helper-2 #loading-helper-1 {
  animation: fade-out 750ms forwards
}

.loading-helper-2 #loading-helper-2 {
  animation: fade-in 750ms forwards;
  animation-delay: 1000ms
}

.loading-helper-1 #loading-helper {
  height: 60px;
}


/* ==========================================================================
  Below are style rules for the cookie and privacy policies
  ========================================================================== */
  
#cookie-notice {
  font-family: sans-serif;
  font-size: 11px;
  text-align: center;
  max-width: calc(100% - 150px);
  opacity: .8;
  color: black;
}

#cookie-title {
  display: block;
  text-transform: uppercase;
  margin-bottom: 5px;
  font-size: 11px;
  font-weight: bold;
}

#privacy {
  padding-bottom: 28px;
  opacity: .8;
}

#privacy>a {
  font-family: sans-serif;
  font-size: 11px;
  color: black;
  text-decoration: underline;
  cursor: pointer
}