h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
}

::selection {
    background: #CCC;
    color: #000;
}

::-moz-selection {
    background: #CCC;
    color: #000;
}

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}