body {
    padding: 0;
    margin: 0;
    min-height: 100vh;
    background-color: rgba(233, 194, 169, 0.744);
    font-family: 'Trebuchet MS', sans-serif; 
}
#container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    min-height: 90vh;
}
.block-table {
    background-color: #373737;
    border-collapse: collapse;
}
#board {
    border: 2px solid #373737;
    background-color: #373737;
    border-collapse: collapse;
}
.cell, .selected-cell, .invalid-cell {
    width: 50px;
    height: 50px;
    border: 0 solid #373737;
    border-radius: 0%;
}
.cell:hover, .selected-cell:hover, .invalid-cell:hover {
    opacity: 0.9;
}
.cell {
    background-color: #f2eaf2;
}
.selected-cell {
    background-color: #e4c5b2;
}
.invalid-cell {
    background-color: #fb6262;
}
.control-button, .fastforward-button {
    margin: 20px 10px;
    width: 100px;
    height: 30px;
    border-radius: 5px;
    border: 2px solid #373737;
    font-size: larger;
    font-family: inherit
}

@media (max-width: 760px) {
    .cell, .selected-cell, .invalid-cell {
        width: 30px;
        height: 30px;
    }
    .control-button, .fastforward-button {
        width: 70px;
        margin: 20px 8px;
    }
}
select {
    appearance: none;           
    -webkit-appearance: none;   
    -moz-appearance: none;
    outline: none;
    text-align-last: center;
    text-align: center;
    font-size: 20px;
    font-family: inherit
}
select:disabled {
    cursor: not-allowed;
    opacity: 1; 
}
#reset-button {
    font-size: large;
    border-radius: 5px;
    border: 2px solid #373737;
    font-family: inherit
}
input[type='button'] {
    background-color: #f2eaf2;
}
input[type='button'], select, a {
    cursor: pointer;
}
input[type='button']:active, a:active {
    transform: scale(0.95);
    background-color: rgb(247, 207, 186);
}
h1#title {
    color: #373737;
}
.fastforward-button {
    animation: moving 0.5s infinite alternate;
}
@keyframes moving {
    0% {padding-left: 0px;}
    100% {padding-left: 20px;}
}
.center {
    display: flex;
    justify-content: center;
    align-items: center;
}
#speed-display {
    width: 50px;
    border-radius: 5px;
}
#speed-reducer, #speed-increaser {
    width: 25px;
    height: 20px;
    margin: 0 8px;
    border-radius: 5px;
}
#speed-display, #speed-reducer, #speed-increaser {
    border: 1px solid black
}
footer {
    display: flex;
    justify-content: center;
    height: 50px;
}