html {
    font-family: "PT Sans", Helvetica, Arial, sans-serif;
}

@media (min-width: 48em) {
    html {
        font-size: 1em;
    }
}
  
@media (min-width: 64em) {
    html {
        font-size: 1.2em;
    }
}

body {
    color: #2c2c2c;
    background-color: #fff;
}

/* No `:visited` state is required by default (browsers will use `a`) */
a {
    text-decoration: none;
}
a strong {
    color: inherit;
}
/* `:focus` is linked to `:hover` for basic accessibility */
a:hover,
a:focus {
    text-decoration: underline;
}

.content {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

@media (min-width: 48em) {
    .content {
        max-width: 38rem;
        margin-left: 20rem;
        margin-right: 4rem;
    }
}

@media (min-width: 64em) {
    .content {
        margin-left: 22rem;
        margin-right: 4rem;
    }
}

.container {
    max-width: 38rem;
    padding-left:  1rem;
    padding-right: 1rem;
    /* margin-left:  auto; */
    /* margin-right: auto; */
}

.sidebar {
padding: 2rem 1rem;
color: rgba(255, 255, 255, .5);
background-color: #202020;
}

@media (max-width: 48em) {
    /* Hide the tag line reserved on mobile */
    .sidebar-about .lead {
        display: none;
    }
    
    /* Hide the all rights reserved on mobile */
    .sidebar p:last-child {
        display: none;
    }
    
    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .sidebar-nav-item {
        display: inline-block;
    }
}

@media (min-width: 48em) {
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 18rem;
}
}

.sidebar a {
color: #fff;
}

.sidebar-about h1 {
margin-top: 0;
font-size: 2.25rem;
}

.sidebar-nav {
margin-bottom: 1rem;
}

.sidebar-nav-item {
display: block;
line-height: 1.75;
}

a.sidebar-nav-item:hover,
a.sidebar-nav-item:focus {
text-decoration: underline;
}

.sidebar-nav-item.active {
font-weight: bold;
}