Question

* {
user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}

body {
margin: 0;
background: black;
}

canvas {
position: fixed;
left: 0;
top: 0;
z-index: 0;
border: 1px solid;
}

#loader {
position: absolute;
z-index: 100;
width: 100%;
height: 100%;
background: black;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
flex-direction: column;
}

#loader > span {
font-family: sans-serif;
font-weight: bold;
text-transform: uppercase;
color: white;
font-size: 16px;
}

#loader > h1 {
font-family: sans-serif;
font-weight: bold;
text-transform: uppercase;
color: gold;
font-size: 32px;
}

.button {
position: absolute;
z-index: 99;
width: 80px;
height: 80px;
background: grey;
opacity: 0.6;​

Answer 1

Explanation:

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