style.css

@import url('https://fonts.googleapis.com/css2?family=Oswald&display=swap');
* {
    margin: 0;
}
/* Header */

.header {
    margin-top: 13vh;
    font-family: 'Oswald', sans-serif;
    text-align: center;
    color: rgba(226, 247, 222, 0.761);
    margin-bottom: 150px;
}

body {
    overflow: hidden;
    height: 100vh;
    background-image: url(bg.jpg);
    background-size: cover;
    background-repeat: no-repeat;  
    background-color: rgb(28, 28, 28);
}

.header h1 {
    font-size: 50px;
}

/* Footer */

.footer {
    position: fixed;
    width: 100%;
    height: 40px;
    bottom: 0;
    background-color: rgba(9, 9, 9, 0.659);
}

.description {
    width: 100%;
    text-align: center;
    margin-top: 6px;
    font-size: 16px;
    color: #999;
    font-family: 'Oswald', sans-serif;
}

.description i {
    color: rgb(238, 223, 7);
    font-size: 25px;
    margin: 0 4px 6px 4px;
}

.description a {
    text-decoration: none;
    color: rgb(0, 105, 128);
}

/* Fire Change */

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 25px;
}


    #range {
      -webkit-appearance: none;
      width: 200px;
      height: 10px;
      background: #444;
      outline: none;
      -webkit-transition: .2s;
      transition: opacity .2s;
      transform: rotate(180deg);
      border-radius: 8px;
    }


/* Fire */

table {
    border-collapse: collapse;
    display: flex;
    justify-content: center;
    align-items: center;
}

td {
    width: 50px;
    height: 50px;
    border: 1px solid black;
    text-align: center;
    vertical-align: center;
    font-family: monospace;
    font-size: 18px;
    position: relative;
}

.pixel-index {
    font-size: 10px;
    display: inline-block;
    position: absolute;
    top: 2px;
    right: 2px;
    color: #999;
}

td.pixel {
    width: 4px;
    height: 4px;
    border: 0;
}