مشاهدة ملف: demos.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    height: 100%;
    padding: 10px;
    color: #262626;
    font-family: 'Helvetica Neue Light', 'Open Sans', Helvetica;
    font-size: 14px;
    font-weight: 300;
}

h1 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-family: 'Helvetica Neue Light', 'Open Sans', Helvetica;
    font-weight: 300;
}

h2 {
    margin: 16px 0 8px 0;
    font-size: 18px;
    font-family: 'Helvetica Neue Light', 'Open Sans', Helvetica;
    font-weight: 300;
}

ul {
    list-style: none;
}

a {
    color: #2ba6cb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    color: #258faf;
}

input, button, select {
    font-family: 'Helvetica Neue Light', 'Open Sans', Helvetica;
    font-weight: 300;
    font-size: 14px;
    padding: 2px;
}

.navigation {
    width: 200px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    padding: 10px;
    border-right: 1px solid #e9e9e9;
}

.navigation li {
    margin: 10px 0;
}

.demo-frame {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 200px;
}

iframe[name='demo'] {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
}