.keyboard {
    position: fixed;
    left: 20px;
    bottom: 20px;
    user-select: none;
    transition: bottom 0.4s;
    width: 50%;
    /* border: 2px solid darkgreen; */
    /* height: 500px;
    width: 500px; */
    cursor: move;
    background: rgba(144, 238, 144, 0.4);
}
.keyboard--hidden {
    bottom: -100%;
}
.keyboard__keys {
    /* border: 2px black solid; */
    padding: 5px 0;
    padding-top: 10px;
    padding-top: 20px;
    padding-bottom: 10px;
    border-radius: 5px;
    text-align: center;
    background: rgba(255, 255, 255, 0.7);
    /* background: rgba(77, 5, 77, 0.5); */
    /* background: rgba(144, 238, 144, 0.4); */
    /* background: rgba(255, 255, 255, 0.6); */
    /* background: black; */
    /* box-shadow: 0 0 50px rgba(0, 0, 0, 0.5); */
    width: 90%;
    cursor: pointer;
}
.keyboard__key {
    height: 30px;
    width: 5%;
    max-width: 90px;
    margin: 3px;
    border-radius: 4px;
    border: none;
    /* background: rgba(255, 255, 255, 0.8); */
    /* color: #ffffff; */
    color: black;
    background: rgba(144, 238, 144, 0.8);
    font-weight: bold;
    font-size: 2rem;
    /* outline: none;   */
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: top;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    transition: all 0.4s;
}

.keyboard__key:active {
    background: rgba(255, 255, 255, 0.12);
    transform: translate(1px, 1px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);      
}

.keyboard__key--wide {
    width: 10%;
}

.keyboard__key--extra-wide {
    width: 40%;
    max-width: 300px;
}

.keyboard__key--activatable::after {
    content: '';
    top: 10px;
    right: 10px;
    position: absolute;
    width: 8px;
    height: 8px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 50%;
}

.keyboard__key--active::after {
    background: #08ff00;
}

.keyboard__key--dark {
    background: rgba(0, 0, 0, 0.25);
}