header#header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--color-background);
    border: 1px;
    border-style: solid;
    border-color: var(--color-outline);
    border-width: 0 0 1px;
}

#header.shadow {
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

img#logo {
    float: left;
    margin: 15px;
    margin-left: 3%;
    background-image: url("/includes/images/tux-ghost.png");
    width: 60px;
    height: 60px;
}

.right-menu-container > input[type=checkbox]:focus ~ label {
    border: 3px solid var(--orange);
}

.right-menu-container > input[type=checkbox]:checked ~ label#burger-menu {
    background: var(--color-background-selected);
}

.right-menu {
    background-color: var(--color-background);
    position: fixed;
    right: -250px;
    top: 91px;
    height: calc(100vh - 172px);
    height: 100vh;
    border-style: solid;
    border-color: var(--color-outline);
    border-width: 0px 0px 1px 1px;
    width: 250px;
    transition: all 0.1s ease-in-out;
    overflow-x: hidden;
    overflow-y: scroll;
}

.right-menu h3 {
    margin: 20px;
}

.right-menu-container > input[type=checkbox]:checked ~ .right-menu {
    right: 0px;
    box-shadow: -2px 3px 8px 1px rgba(0, 0, 0, 0.1);
}
.right-menu-container > input[type=checkbox] {
    display: block;
    visibility: none;
    float: right;
    opacity: 0;
}
.right-menu-container > label {
    float: right;
    height: 20px;
    width: 20px;
    margin-top: 20px;
    background-size: cover;
    cursor: pointer;
    border: 3px solid var(--color-background);
}
.right-menu-container > #burger-menu {
    background-color: var(--color-background);
    width: 40px;
    height: 40px;
    border-radius: 5px;
}
.right-menu-container > #burger-menu > div {
    width: 30px;
    height: 4px;
    margin: 7px 5px;
    background-color: var(--color-accent);
    border-radius: 1px;
}