section#canvas {
    height: auto;
    width: 100%;
    background-color: rgba(0,0,0,.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

#messages {
    border-radius: 5px;
    display: flex;
    opacity: 0;
    position: fixed;
    background-color: #000000;
    height: 30px;
    width: auto;
    padding: 5px;
    color: #fff;
    top: 50px;
    z-index: 99;
    align-items: center;
    justify-content: center;
    transition: all 1s;
}

#messages.shown{
    opacity: 1;
}

#board {
    width: 100%;
    padding: 10px;
}

.board-row {
    height: auto;
    width: auto;
    display: flex;
    justify-content: center;
    flex-direction: row;
    margin-bottom: 2px;
}

.board-column {
    height: 0;
    padding-bottom: 10.5%;
    width: 10.5%;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 10px;
    margin: 1px;
    position: relative;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.board-column.flipped {
    transform: rotateY(180deg);
}

.board-column-front, .board-column-back {
    position: absolute;
    width: 100%;
    height: 100%;
    font-size: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    padding-left: 1px;
  }

.board-column-back{
    /* background-color: blue; */
    transform: rotateY(180deg);
}

#keypad {
    margin-left: auto;
    margin-right: auto;
    padding-top: 10px;
    padding-bottom: 10px;
    max-width: 97%;
}

#keypad #alphabets {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    max-width: 400px;
    justify-content: center;
    align-items: center;
}

#special-keys {
    margin-right: 10px;
    margin-top: 10px;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.keypad-key {
    height: 30px;
    width: 30px;
    color: red;
    font-size: 20px;
    background-color: transparent;
    padding: 3px;
    margin: 3px;
    cursor: pointer;
    border-radius: 10px;
    border: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    box-shadow: 4px 4px 0px #ff0000,
         4px 4px 12px rgba(0,0,0,0.6);
}

.current {
    border: 2px solid white;
}

.grey {
    opacity: 0.3;
}

.yellow {
    background-color: #ffcc00;
}
.green {
    background-color: #00ff00;
}

.keypad-special-key {
    height: 30px;
    color: red;
    font-size: 20px;
    background-color: transparent;
    padding-top: 3px;
    padding-bottom: 3px;
    padding-left: 10px;
    padding-right: 10px;
    margin: 3px;
    cursor: pointer;
    border-radius: 10px;
    border: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: white;
    box-shadow: 4px 4px 0px #ff0000,
         4px 4px 12px rgba(0,0,0,0.6);
}

.disabled-button {
    background-color: #a9a9a9;
    opacity: 0.6;
    pointer-events: none;
}

#banner, #answer-banner {
    position: fixed;
    height: 70vh;
    width: 70%;
    background-color: rgba(0,0,0,0.8);
    z-index: 99;
    left: 15%;
    top: 20%;
    border-radius: 10px;
    color: yellow;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    display: none;
    font-size: 16px;
    text-align: center;
}
.banner-msg{
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.divider{
    height: 2px;
    width: 100%;
    display: block;
    background-color: #fff;
    margin: 10px 0 10px 0;
}