#mobile {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
#mobile:before,
#mobile:after {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
#mobile2 {
    font-size: 28px;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}