.primary {
    color: darkgreen;
    font-weight: bold;
}

.secondary {
    color: darkblue;
    font-weight: bold;
}

.corners-container {
    display: flex;
    flex-flow: row nowrap;
    justify-content: space-between;
}


div.category {
    font-size: 2rem;
    font-weight: bold;
}

img.category {
    display: block;
    width: 120px;
    max-width: 100%;
    height: auto;
}

.stimulus-container {
    display: flex;
    flex-flow: row nowrap;
    justify-content: center;
    align-items: center;
    min-height: 100px;
}

p.stimulus {
    /*font-size: x-large;*/
    /*min-height: 1.25em;*/
    font-weight: bold;
    font-size: 3em;
    margin-top: 1.5em;
}

img.stimulus {
    width: 300px;
    max-width: 100%;
}

.feedback {
    width: 6em;
    margin: 0 auto;
}
#answer-inp {
    font-size:2rem;
}
.feedback .form-control {
    display: inline;
    background-color: transparent;
    border: none;
    font-weight: bold;
    font-size: x-large;
}

.hidden {
    display: none !important;
}


.key {
    font-family: monospace;
    text-transform: uppercase;
}

#progress-bar {
    width: 100%;
}

/*.instructions {*/
/*    text-align: center;*/
/*}*/


span.key {
    font-family: monospace;
    font-weight: bold;
    font-size: 1.2em;
}

.press_key {
    color: gray;
    margin: 0;
}