animation on the main page

Question

Includes a start animation of my project ( example "welcome" and soon after go to the main home, but in case it is the 2 together... Is it possible?

Answer 1

Luciana from what I understand you want an animation like Typewriter with a phrase before entering the correct website.

I made this template only with CSS and I think it will serve you as an example

First I suggest you read about the @keyframes CSS to know how the animation was made. https://tableless.com.br/css3-animation-keyframe/ so you will understand how to synchronize all your animation and adjust these values in the correct way for example blinkTextCursor 500ms steps(17) 12 backwards;

I left the comments in the code to help you.

The animation will happen and when finished I will make a "fade" to take the black background of Ima site that will already be there, only hidden below the div.

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  background-color: blue;
  overflow: hidden;
}

h1 {
  font-family: sans-serif;
  font-size: 50px;
  color: #f00;
  margin-top: 0;
}
div.imagem {
  background-image: url(http://placecage.com/201/80);
  width: 200px;
  height: 80px;
}
p.centro {
  position: relative;
  z-index: 3;
  text-align: center;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  font-family: 'Anonymous Pro', monospace;
}
.line {
  position: relative;
  width: 0px;
  margin: auto;
  border-right: 2px solid transparent;
  font-size: 180%;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}

.anim-typewriter {
  animation: typewriter 5500ms steps(17) 500ms forwards, /* aqui vc controlo o tempo do efeito escrita mais 1 steps(X) para cada caracter  */
  blinkTextCursor 500ms steps(17) 12 backwards; /* aqui vc controlo o tempo da linha mais 1 steps(X) para cada caracter e ela repete 12x500ms = 6000ms */
}
@keyframes typewriter {
0% {
  width: 0px;
}
10% {
  width: 0px;
}
25% {
  width: 270px;
}
75% {
  width: 270px;
}
90% {
  width: 0px;
}
91% {
  width: 0px;
  display: none;
}
}
@keyframes blinkTextCursor {
  from {
    border-right-color: transparent;
  }
  to {
    border-right-color: rgba(255, 255, 255, 0.75);
  }
}

div.bg {
  position: absolute;
  overflow: hidden;
  z-index: 2;
  width: 100%;
  height: 100%;
  background-color: #000000;
  top: 0;
  left: 0;
  opacity: 1;
  animation: fade 7500ms forwards; /* aqui vc controlo o tempo que a tela preta demora para sumir XXXms */
}
@keyframes fade {
  0% {
    opacity: 1;
    height: 100%;
  }
  80% {
    opacity: 1;
    height: 100%;
  }
  99% {
    opacity: 0;
    height: 100%;
  }
  100% {
    opacity: 0;
    height: 0;
  }
}

<p class="centro line anim-typewriter">Sejam bem vindos!</p>
<div class="bg"></div>
<Section>
  <h1>Meu site</h1>
  <div class="imagem"></div>
</Section>