testes/Css/page/Telas_acao/load.css

body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    overflow: hidden;
    background-color: #282c34;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    border: 1px solid #fff;
}