@chakra-ui/core v0.8.0 <CSSReset /> in CSS

main.css

/* https://github.com/chakra-ui/chakra-ui/blob/%40chakra-ui/core%400.8.0/packages/chakra-ui/src/CSSReset/preflight.js  */

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
}

main {
  display: block;
}

h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

hr {
  box-sizing: content-box;
  height: 0;
  overflow: visible;
}

pre {
  font-family: monospace, monospace;
  font-size: 1em;
}

a {
  background-color: transparent;
}

abbr[title] {
  border-bottom: none;
  text-decoration: underline;
  -webkit-text-decoration: underline dotted;
  text-decoration: underline dotted;
}

b,
strong {
  font-weight: bolder;
}

code,
kbd,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

small {
  font-size: 80%;
}

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

img {
  border-style: none;
}

button,
input,
optgroup,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}

button,
input {
  overflow: visible;
}

button,
select {
  text-transform: none;
}

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

fieldset {
  padding: 0.35em 0.75em 0.625em;
}

legend {
  box-sizing: border-box;
  color: inherit;
  display: table;
  max-width: 100%;
  padding: 0;
  white-space: normal;
}

progress {
  vertical-align: baseline;
}

textarea {
  overflow: auto;
}

[type="checkbox"],
[type="radio"] {
  box-sizing: border-box;
  padding: 0;
}

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none !important;
}

input[type="number"] {
  -moz-appearance: textfield;
}

[type="search"] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none !important;
}

 ::-webkit-file-upload-button {
  -webkit-appearance: button;
  font: inherit;
}

details {
  display: block;
}

summary {
  display: list-item;
}

template {
  display: none;
}

[hidden] {
  display: none !important;
}

html {
  box-sizing: border-box;
  font-family: sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

blockquote,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
figure,
p,
pre {
  margin: 0;
}

button {
  background: transparent;
  padding: 0;
}

fieldset {
  margin: 0;
  padding: 0;
}

ol,
ul {
  margin: 0;
  padding: 0;
}

html {
  font-family: $ {
    theme.fonts.body
  }
  ;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizelegibility;
}

hr {
  border-top-width: 1px;
}

img {
  border-style: solid;
}

textarea {
  resize: vertical;
}

button,
[role="button"] {
  cursor: pointer;
}

button::-moz-focus-inner {
  border: 0 !important;
}

table {
  border-collapse: collapse;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

a {
  color: inherit;
  text-decoration: inherit;
}

button,
input,
optgroup,
select,
textarea {
  padding: 0;
  line-height: inherit;
  color: inherit;
}

pre,
code,
kbd,
samp {
  font-family: $ {
    theme.fonts.mono
  }
  ;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  vertical-align: middle;
}

img,
video {
  max-width: 100%;
  height: auto;
}


/* https://github.com/chakra-ui/chakra-ui/blob/%40chakra-ui/core%400.8.0/packages/chakra-ui/src/CSSReset/index.js */

html {
  line-height: 1.5;
  color: red;
  background-color: red;
}


/**
 * Allow adding a border to an element by just adding a border-width.
 */

*,
*::before,
*::after {
  border-width: 0;
  border-style: solid;
  border-color: red;
}

input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
  color: red;
}

input::-ms-input-placeholder,
textarea::-ms-input-placeholder {
  color: red;
}

input::placeholder,
textarea::placeholder {
  color: red;
}