#header-container {
    color: white;
    font-size: 0.8rem;
    height: 1.5rem;
    padding: 0.2rem 0 0.1rem 0.5rem;
    background: #24292d;
    border-bottom: 1px solid #212529;
}

#headerCaption {
    width: 100%;
    font-size: 1.1em;
}

#headerOOVObjects {
    display: flex;
    margin-right: 4em;
}

.header-buttons {
    display: flex;    
}

.header-button {
    width: 2.5em;
    height: 1em;
    background-repeat: no-repeat;
	background-position: center;
    background-size: cover;
    background-color: transparent;
    border: none;
}

.oov-object {
    width: 2.5em;
    height: 1em;
    margin-right: 0;
    background-repeat: no-repeat;
	background-position: center;
    background-size: cover;
    background-color: transparent;
    border: none;
}

.oov-object:focus {
    outline: none;
}

.header-button:focus {
    outline: none;
}