style>
@-webkit-keyframes pulseProgress {
  from { opacity: 1; }
  25% { opacity: 0; }
  50% { opacity: 0; }
  to { opacity: 1; }
}

.pulseProgress {
  -webkit-animation-name: pulseProgress;
  -webkit-animation-duration: 5s;
  -webkit-animation-iteration-count: infinite;
}
</style>
<div style="
    background: rgba(255,255,255,.4);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
"class="pulseProgress"><p style="
    position: absolute;
    top: 35%;
    text-align: center;
    width: 100%;
    font-size: 80px;
    color: rgba(33,33,88,1);
    font-family: &quot;Moon Flower Bold&quot;;
">Travaux en cours -
Inauguration prochainement</p></div>