@import url('https://fonts.googleapis.com/css2?family=Martian+Mono&display=swap');
*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Martian', monospace;
}
body
{
    background:#2b272b;
}
.navigation
{
    position: fixed;
    inset: 20px 0 20px 20px;
    width: 105px;
    background: #332e33;
    transition: 0.5s;
    display: flex;
    justify-content: center;
    align-items: center;
}
.navigation.open
{
    width: 250px;
}
.navigation .menuToggle
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    border-bottom: 1px solid rgba(0,0,0,0.25);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 23px;
}
.navigation .menuToggle::before
{
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background: #413b41;
    transform: translateY(-8px);
    transition: 0.5s;
}
.navigation.open .menuToggle::before
{
    transform: translateY(0px) rotate(45deg);
}
.navigation .menuToggle::after
{
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background: #413b41;
    transform: translateY(8px);
    transition: 0.5s;
    box-shadow: 0 -8px 0 #413b41;
}
.navigation.open .menuToggle::after
{
    transform: translateY(0px) rotate(-45deg);
    box-shadow: 0 0 0 #413b41;
}