body {
    margin: 0;
    padding: 0;
    background-color: whitesmoke;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

#board {
    display: flex;
    flex-wrap: wrap;
    margin-left: 50vw;
    transform: translate(-50%);
    margin-top: 10px;
    padding: 10px;
    border-radius: 10px;
    width: 90vh;
    height: 90vh;
    background-color: #666;
    box-shadow: 0px 10px 5px 1px rgba(80, 80, 80, .2);
}

@media (max-width: 720px) {
    #board {
        margin-left: 5px;
        transform: none;
    }
}

#board div {
    margin: 6px;
    cursor: pointer;
    background-color: #333;
    border-radius: 10px;
    width: calc(20% - 12px);
    height: calc(20% - 12px);
    text-align: center;
    -webkit-touch-callout: none; /* iOS Safari */
      -webkit-user-select: none; /* Safari */
       -khtml-user-select: none; /* Konqueror HTML */
         -moz-user-select: none; /* Old versions of Firefox */
          -ms-user-select: none; /* Internet Explorer/Edge */
              user-select: none; /* Non-prefixed version, currently
                                    supported by Chrome, Edge, Opera and Firefox */
}
#board div p {
    margin: 5px;
    font-size: 10pt;
    word-wrap: break-word;
    height: 35px;
    color: whitesmoke;
}
#board div:hover {
    opacity: 0.8;
}
.found {
    background-color: #7ed28c !important;
}
.found::after {
    font-size: 30pt;
    color: white;
    content: "\2714";
}