style.css

body{
    height: 100%;
    background-color: #ececec;
    margin: 0;
    font-family: monospace;
}

table{
    border-collapse: collapse;
    border: 2px solid #000;
}

td{
    width: 16px;
    height: 16px;
    border: 1px solid #000;
    text-align: center;
    vertical-align: center;
    font-size: 10px;
    position: relative;
}

td.pixel{
    width: 8px;
    height: 8px;
    border: 0;
}

#fireCanvas{
    margin: auto;
    display: flex;
    justify-content: center;
    margin-top: 5%;
}

.options{
    max-width: 324px;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: start;
}

.input-option{
    width: 324px;
    -webkit-appearance: none;
    margin: 10px 0;
}

.input-option::-webkit-slider-runnable-track{
    width: 100%;
  height: 12px;
  cursor: pointer;
  animate: 0.2s;
  box-shadow: 1px 1px 2px #A6A6A6;
  background: rgb(199, 71, 7);
  border-radius: 4px;
  border: 2px solid rgb(158, 56, 6);
}

.input-option::-webkit-slider-thumb {
    border: 2px solid rgb(158, 56, 6);
    height: 20px;
    width: 15px;
    border-radius: 5px;
    background: rgb(199, 71, 7);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -6px;
}

button{
    margin: 40px;
    width: 150px;
    height: 50px;
    cursor: pointer;
    background-color: rgb(199, 71, 7);
    color: #ececec;
    border: none;
    box-shadow: 2px 2px 2px #A6A6A6;
    border-radius: 5px;
}

button:hover{
    box-shadow: 4px 4px 4px #A6A6A6;
}