modern-normalize.css

html {
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

:root {
    -moz-tab-size: 4;
    tab-size: 4;
}

html {
    line-height: 1.15; /* 1 */
    -webkit-text-size-adjust: 100%; /* 2 */
}

body {
    margin: 0;
}

body {
    font-family: -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif,
    'Apple Color Emoji',
    'Segoe UI Emoji',
    'Segoe UI Symbol';
}

hr {
    height: 0;
}

abbr[title] {
    text-decoration: underline dotted;
}

b, strong {
    font-weight: bolder;
}

code, kbd, samp, pre {
    font-family: SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    font-size: 1em;
}

/**
 * Add the correct font size in all browsers.
 */

small {
    font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in all browsers.
 */

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

sub {
    bottom: -0.25em;
}

sup {
    top: -0.5em;
}

/* Forms
   ========================================================================== */

/**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */

button,
input,
optgroup,
select,
textarea {
    font-family: inherit; /* 1 */
    font-size: 100%; /* 1 */
    line-height: 1.15; /* 1 */
    margin: 0; /* 2 */
}

/**
 * Remove the inheritance of text transform in Edge and Firefox.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select { /* 1 */
    text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */

button,
[type='button'],
[type='reset'],
[type='submit'] {
    -webkit-appearance: button;
}

/**
 * Remove the inner border and padding in Firefox.
 */

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

/**
 * Restore the focus styles unset by the previous rule.
 */

button:-moz-focusring,
[type='button']:-moz-focusring,
[type='reset']:-moz-focusring,
[type='submit']:-moz-focusring {
    outline: 1px dotted ButtonText;
}

/**
 * Correct the padding in Firefox.
 */

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

/**
 * Remove the padding so developers are not caught out when they zero out `fieldset` elements in all browsers.
 */

legend {
    padding: 0;
}

/**
 * Add the correct vertical alignment in Chrome and Firefox.
 */

progress {
    vertical-align: baseline;
}

/**
 * Correct the cursor style of increment and decrement buttons in Safari.
 */

[type='number']::-webkit-inner-spin-button,
[type='number']::-webkit-outer-spin-button {
    height: auto;
}

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */

[type='search'] {
    -webkit-appearance: textfield; /* 1 */
    outline-offset: -2px; /* 2 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */

[type='search']::-webkit-search-decoration {
    -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
    -webkit-appearance: button; /* 1 */
    font: inherit; /* 2 */
}

/* Interactive
   ========================================================================== */

/*
 * Add the correct display in Chrome and Safari.
 */

summary {
    display: list-item;
}