:root {
--text-size: ;
--headline-size: ;
--text-color: ;
--background-color: ;
--element-color-1: ;
--element-color-2: ;
}

* {
  box-sizing: border-box;
}

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  margin-block-end: 0;
  margin-block-start: 0;
}

ol, ul {
  list-style: none;
}

html, body {
  height: 100%;
  width: 100%;
  padding: 1rem;
}

img {
  display: block;
}