body {
    text-align: center;
    background-image: url('background.jpg')
}

h1 {
    font-family: 'Press Start 2P', cursive;
    font-family: 'Eagle Lake', cursive;
    color: #050e8c;
    font-size: 70px;
    margin: 0.2em;
}

h2 {
    margin: 1em 0 0.25em;
    font-family: 'Press Start 2P', cursive;
    font-family: 'Eagle Lake', cursive;
}

table,
tr,
td {
    border: 1px solid black;
}

table {
    border-collapse: collapse;
    margin: 0 auto;
}

tr {
    height: 20px;
}

td {
    width: 20px;
}

input[type=number] {
    width: 6em;
}

#submit {
    padding: 10px 24px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    margin: 4px 2px;
    cursor: pointer;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

#clear {
    color: black;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    -webkit-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

#erase {
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    -webkit-transition-duration: 0.4s;
    /* Safari */
    transition-duration: 0.4s;
}

#export {
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    -webkit-transition-duration: 0.4s;
    /* Safari */
    transition-duration: 0.4s;
}

#submit:hover {
    background-color: #4CAF50;
    color: white;
}

#clear:hover {
    background-color: blue;
    color: white;
}

#erase:hover {
    background-color: #f44336;
    color: white;
}

#export:hover {
    background-color: green;
    color: white;
}