:root {
    --container-max-width: 800px; 
}

.container {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container-max-width);
    padding-left: 20px; 
    padding-right: 20px; 
    display: flex;
    justify-content: space-between;
    position: relative;
}

.left-column, .right-column {
    text-align: left;
    padding: 10px;
    width: 48%;
}

.vertical-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: #ccc;
}

footer {
    font-size: larger;
    margin-top: 20px;
    text-align: center;
}

body {
    font-family: Gill Sans, sans-serif;
    margin: 20px;
    margin-top: 0;
    color: #333;
    padding-bottom: 20px;
}
header {
    text-align: center;
    padding: 10px;
    padding-top: 0;
}
hr {
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    border: 0;
    height: 1px;
    background: #ccc;
    margin-bottom: 10;
}
h1 {
    font-size: 30px;
    color: #000;
    margin-bottom: 0;
}
h2 {
    font-size: 20px;
    margin-bottom: 0;
}
h3 {
    font-size: 18px;
    color: #000;
    margin-bottom: 5px;
}
section {
    margin-bottom: 20px;
    margin-left: 10px;
    margin-right: 10px;
}
article {
    padding-bottom: 10px;
    margin-bottom: 10px;
}

p {
    font-size: 16px;
    line-height: 1.5;
    margin-top: 0px;
    margin-bottom: 0;
}

li {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 0;
}

b {
    margin-top: 0px;
    display: block; 
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    .left-column {
        padding-left: 0;
    }
    .right-column {
        padding-right: 0;
    }
    body {
        margin: 0;
    }
    
    h2 {
        font-size: 14px;
    }
    h3 {
        font-size: 10px;
    }
    p, b, li {
        font-size: 14px;
    }
    footer {
        font-size: medium;
    }
}