@mixin transition($what,$time: 400ms,$style: ease){
    -webkit-transition: $what $time $style;
    -moz-transition: $what $time $style;
     -ms-transition: $what $time $style;
     -o-transition: $what $time $style;
    transition: $what $time $style;
}
@mixin ms($res)
    {
    @media screen and (max-width: $res)
    {
        @content;
    }
}

@mixin trans(){
    -webkit-transition: all 0.4s ease-in-out;
    -moz-transition: all 0.4s ease-in-out;
}