body.background-image
{
    background-image: url('source/picture/background/background3.jpg');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}
code
{
    font-size: 16px;
}
a,a:hover
{
    text-decoration: none;
    color: rgb(160, 160, 180);
    border-radius: 1px;
}
*
{
    box-sizing: border-box;
}