* {
    box-sizing: border-box;
}

html, body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #F5F7FA;
    line-height: 1.5;
}

.content p,
.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
    margin-top: 0;
    margin-bottom: 10px;
}

a:visited {
    color: #0000EE;
}

a:active {
    color: #EE0000;
}