/* Strong CSS Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    margin: 0 !important;
    padding: 0 !important;
    height: 100%;
    width: 100%;
    overflow: hidden;
    border: 0;
    outline: 0;
}

/* Remove default margins and padding from common elements */
h1, h2, h3, h4, h5, h6, p, div, span, a, img, button, input, textarea, select, form, ul, ol, li {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
}

/* Ensure no browser default spacing */
body, html {
    -webkit-margin-before: 0;
    -webkit-margin-after: 0;
    -webkit-margin-start: 0;
    -webkit-margin-end: 0;
    -webkit-padding-before: 0;
    -webkit-padding-after: 0;
    -webkit-padding-start: 0;
    -webkit-padding-end: 0;
}