body {
    font-family: 'Helvetica', sans-serif;
    font-weight: lighter;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #333;
    text-align: left;
}
.container {
    max-width: 720px;
    margin: 40px auto;
    padding: 20px;
    line-height: 1.6;
}
/* Center the title block, keep body copy left-aligned for readability */
.container > h1,
.container > h1 + h3,
.container > h1 + h3 + p {
    text-align: center;
}
/* Keep the intro on a single line */
.container > h1 + h3 + p {
    white-space: nowrap;
}
h1 {
    font-family: 'Helvetica', sans-serif;
    font-weight: lighter;
    font-size: 28px;
    letter-spacing: 2px;
    margin-bottom: 8px;
}
h2 {
    font-family: 'Helvetica', sans-serif;
    font-weight: normal;
    font-size: 20px;
    margin-top: 40px;
    margin-bottom: 8px;
}
h3 {
    font-family: 'Helvetica', sans-serif;
    font-weight: lighter;
    color: #555;
}
section {
    margin-top: 32px;
}
p {
    color: #333;
}
ul {
    padding-left: 20px;
}
li {
    margin-bottom: 10px;
}
.image-container {
    /* Break out wider than the 720px text column, centered on the viewport */
    width: 90vw;
    max-width: 1100px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    margin: 24px 0;
    border-radius: 10px;
}
img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}
.image-container img + img {
    margin-top: 16px;
}
.caption {
    margin-top: 15px;
    font-size: 16px;
    color: #555;
}
footer {
    margin-top: 50px;
    font-size: 14px;
    color: #777;
    padding-bottom: 40px;
}
a:link {
    text-decoration: underline;
    color: #777;
  }
  
/* visited link */
a:visited {
    /* text-decoration: none; */
    color: #777;
}

/* mouse over link */
a:hover {
    color: #777;
}

/* selected link */
a:active {
    color: #777;
}

/* Responsive Design for iPhones */
@media screen and (max-width: 768px) {
    .container {
        max-width: 90%;
        padding: 15px;
    }
    h1 {
        font-size: 24px;
    }
    .caption {
        font-size: 14px;
    }
    footer {
        font-size: 12px;
        padding-bottom: 20px;
    }
}