body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
}
.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
}
header {
    background: #50b3a2;
    color: #ffffff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #e8491d 3px solid;
}
header a {
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}
header ul {
    padding: 0;
    margin: 0;
    list-style: none;
    overflow: hidden;
}
header li {
    float: left;
    display: inline;
    padding: 0 20px 0 20px;
}
header #branding {
    float: left;
}
header #branding h1 {
    margin: 0;
}
header nav {
    float: right;
    margin-top: 10px;
}
#showcase {
    min-height: 400px;
    background: url('https://picsum.photos/1600/900?grayscale') no-repeat 0 -400px;
    text-align: center;
    color: #ffffff;
}
#showcase h1 {
    margin-top: 100px;
    font-size: 55px;
    margin-bottom: 10px;
}
#showcase p {
    font-size: 20px;
}
#main-col {
    float: left;
    width: 65%;
    padding: 20px;
    background: white;
    margin-top: 20px;
    box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.1);
}
#sidebar {
    float: right;
    width: 30%;
    padding: 20px;
    margin-top: 20px;
    background: #333;
    color: #fff;
    box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.1);
}
.img-responsive {
    width: 100%;
    height: auto;
    margin-bottom: 15px;
    border-radius: 5px;
}
footer {
    padding: 20px;
    margin-top: 20px;
    color: #ffffff;
    background-color: #50b3a2;
    text-align: center;
}