.#{$slug}main_container{
    form, 
    input, 
    input[type=text],
    input[type=checkbox],
    input[type=radio],
    input[type=submit],
    button,
    select, 
    textarea,
    label,
    img,
    span,
    b,
    p,
    h1, 
    h2, 
    h3 {
        position: relative;
        font: inherit;
        padding: 0;
        margin: 0;
        box-sizing: border-box;
        cursor: default;
    }
}