.off-canvas .avatar {
    text-align: center;
}

.off-canvas .avatar img {
    width: 8em;
    height: 8em;
}

header > div.h-wrap {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.sun-btn,
.moon-btn {
    height: 30px;
    width: 30px;
    margin-right: 1em;
    cursor: pointer;
    background-color: transparent;
    border: none;
    display: flex;
    align-items: center;
}

.sun-btn:focus,
.moon-btn:focus {
    outline: 0;
}

.sun-btn.hidden,
.moon-btn.hidden {
    display: none;
}