body {
    /* Hide scrollbars */
    overflow: hidden;
}

html, body {
    /* Disable default margins */
    margin: 0;
    background-color: #d4d4d4;
    height: 100%;
}

#root-container {
    display: flex;
    flex-direction: column;
}

header {

}

header > h1 {
    text-align: center;
}

#main-content {
    display: flex;
}

main {
    border-style: solid;
}

footer {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    text-align: center;
}

#controls {
    display: flex;
    justify-content: center;
    font-size: x-large;
}

#controls > div {
    padding-top: 0rem;
    padding-left: 1rem;
    padding-right: 1rem;
    padding-bottom: 1rem;
    margin-left: 3rem;
    margin-right: 3rem;
}

#feedback-container {
    margin-top: 2rem;
}

#feedback {
    color: rgb(30, 30, 30);
}

.selected-mode {
    border: solid;
    border-width: 2px;
    border-radius: 20px;
    background-color: #A7C7E7;
}

kbd {
    border: 2px solid; 
    box-shadow: 2px 2px; 
    display: inline-block;
    font-weight: 600;
    letter-spacing: .05em; 
    padding: 3px 5px;
    white-space: nowrap;
}