body {
    background: linear-gradient(135deg, #8844ee, #B07DFB);
    font: normal 15pt Arial;
    min-height: 1000px;
}

header {
    color: white;
    text-align: center;
}

h1 {
    text-align: center;
}

h1#tic-tac-toe {
    text-align: center;
}

h1#tic-tac-toe::after {
    content: '';
}

h1::after {
    content: '|';
    animation: blink 1s linear infinite;
}

@keyframes blink {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

section {
    background: linear-gradient(135deg, #888787, rgb(46, 46, 48));
    border-radius: 10px;
    padding: 15px;
    max-width: 800px;
    margin: auto;
    box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.384);
    border: 5px solid rgba(82, 22, 22, 0.322);
}

select {
    width: 150px;
    overflow: hidden;
}

footer {
    color: white;
    text-align: center;
    font-style: italic;
    margin-top: 200px;
}

ul {
    padding: 50px;
    overflow: hidden;
    list-style: none;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
}

@media (max-width:840px) {
    ul {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width:600px) {
    ul {
        grid-template-columns: 1fr;
    }
}

ul a li {
    border: 3px double rgba(8, 4, 4, 0.349);
    height: 200px;
    width: 200px;
    margin: 20px 20px 0px 20px;
    transition: all 0.2s ease-in;
}

li#contcont {
    background: url('../img/img_cont.png') no-repeat;
    background-position: 50% 0%;
    background-size: 450px 350px;
}

li#mult {
    background: url('../img/img_mult.png') no-repeat;
    background-position: 49% 0%;
    background-size: 450px 350px;
}

li#age {
    background: url('../img/age.png') no-repeat;
    background-position: 49% 0%;
    background-size: 450px 350px;
}

li#tictactoe {
    background: url('../img/tic_tac_toe.png') no-repeat;
    background-position: 49% 0%;
    background-size: 450px 350px;
}

li#doomFire {
    background: url('../img/fire.png') no-repeat;
    background-position: 50% 0%;
    background-size: 400px 250px;
}

ul a:hover li#contcont,
ul a:hover li#mult,
ul a:hover li#age,
ul a:hover li#tictactoe,
ul a:hover li#doomFire {
    background-position: 0px 0px;
    background-size: 200px 200px;
    transform: scale(1.5);
}

legend {
    margin: 0px 0px 5px 0px;
}

.loader {
    margin-top: 20px;
    border: 10px solid #f3f3f3;
    border-top: 10px solid rgb(21, 13, 90);
    border-bottom: 10px solid rgb(21, 13, 90);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}


/* TIC-TAC-TOE */

.botaoDeJogada {
    width: 25%;
    height: 100px;
    font-size: 30pt;
    font-family: 'Trebuchet MS';
    background: rgb(63, 165, 134);
    box-shadow: 2px 2px 2px black;
}

@media(max-width: 400px) {
    .botaoDeJogada {
        height: 80px;
    }
}

.tic-tac-toe {
    display: flex;
    justify-content: center;
    flex-direction: column;
}

#principal {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    max-height: 100%;
    flex-direction: column;
}

#status {
    margin-top: 50px;
    font-size: 22pt;
    font-weight: bold;
}

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

table td {
    border: 1px solid black;
    width: 50px;
    height: 50px;
    position: relative;
    font-size: 10px;
}

.pixelIndex {
    font-size: 8px;
    display: inline-block;
    position: absolute;
    top: 2px;
    right: 2px;
    color: black;
}

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

span.spanFire {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 10px;
}

audio {
    position: absolute;
    margin-top: 300px;
    width: 10%;
}

button {
    margin: 10px;
    flex-grow: 0;
}

.fireUp {
    background-color: rgb(196, 54, 54);
    border-radius: 20%;
}

.fireDown {
    background-color: rgb(93, 105, 172);
    border-radius: 20%;
}