element.style {
}
body {
    height: 100%;
}
body, html {
    min-height: 100%;
}
body {
    transition: all .6s ease;
}
body, body .btn {
    font-weight: 300;
}
body {
    background: #e7e7e7;
    font-family: Roboto,sans-serif;
    font-size: 16px;
    line-height: 1.5em;
    color: #222;
}
body {
    font-family: Helvetica Neue,Helvetica,Arial,sans-serif;
    font-size: 14px;
    line-height: 1.42857143;
    color: #333;
    background-color: #fff;
}
body {
    margin: 0;
}
*, :after, :before {
    box-sizing: border-box;
}
user agent stylesheet
body {
    display: block;
    margin: 8px;
}
html {
    font-size: 10px;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}
html {
    font-family: sans-serif;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}
*, :after, :before {
    box-sizing: border-box;
}
*, :after, :before {
    box-sizing: border-box;
}