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HTML

              
                <!DOCTYPE html>
<html lang="ja">
	<head>
		<meta charset="UTF-8" />
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>Document</title>

		<link rel="stylesheet" href="./css/style.css" />
	</head>
	<body>
		<p>pタグです</p>
		<h1>h1タグです</h1>
		<h2>h2タグです</h2>
		<h3>h3タグです</h3>
		<h4>h4タグです</h4>
		<h5>h5タグです</h5>
		<h6>h6タグです</h6>
		<a href="https://www.google.com/">google</a>
		<ul>
			<li>リスト1です</li>
			<li>リスト2です</li>
			<li>リスト3です</li>
		</ul>
		<ol>
			<li>リスト1です</li>
			<li>リスト2です</li>
			<li>リスト3です</li>
		</ol>
		<img src="http://placekitten.com/300/200" />
		<table>
			<tr>
				<th>thタグ1</th>
				<th>thタグ2</th>
				<th>thタグ3</th>
			</tr>
			<tr>
				<td>tdタグ1</td>
				<td>tdタグ2</td>
				<td>tdタグ3</td>
			</tr>
			<tr>
				<td>tdタグ1</td>
				<td>tdタグ2</td>
				<td>tdタグ3</td>
			</tr>
			<tr>
				<td>tdタグ1</td>
				<td>tdタグ2</td>
				<td>tdタグ3</td>
			</tr>
		</table>
		<hr>
		<hr>
		<hr>
		<label>labelタグです</label>
		<hr>
		<input type="text" placeholder="テキスト入力です" />
		<hr>
		<textarea type="text" placeholder="テキストエリアです"></textarea>
		<hr>
		<button type="submit">ボタンです</button>
		<hr>
	</body>
</html>

              
            
!

CSS

              
                /*!
 * ress.css • v3.0.1
 * MIT License
 * github.com/filipelinhares/ress
 */

/* # =================================================================
   # Global selectors
   # ================================================================= */

html {
  box-sizing: border-box;
  -webkit-text-size-adjust: 100%; /* Prevent adjustments of font size after orientation changes in iOS */
  word-break: normal;
  -moz-tab-size: 4;
  tab-size: 4;
}

*,
::before,
::after {
  background-repeat: no-repeat; /* Set `background-repeat: no-repeat` to all elements and pseudo elements */
  box-sizing: inherit;
}

::before,
::after {
  text-decoration: inherit; /* Inherit text-decoration and vertical align to ::before and ::after pseudo elements */
  vertical-align: inherit;
}

* {
  padding: 0; /* Reset `padding` and `margin` of all elements */
  margin: 0;
}

/* # =================================================================
   # General elements
   # ================================================================= */

hr {
  overflow: visible; /* Show the overflow in Edge and IE */
  height: 0; /* Add the correct box sizing in Firefox */
}

details,
main {
  display: block; /* Render the `main` element consistently in IE. */
}

summary {
  display: list-item; /* Add the correct display in all browsers */
}

small {
  font-size: 80%; /* Set font-size to 80% in `small` elements */
}

[hidden] {
  display: none; /* Add the correct display in IE */
}

abbr[title] {
  border-bottom: none; /* Remove the bottom border in Chrome 57 */
  /* Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari */
  text-decoration: underline;
  text-decoration: underline dotted;
}

a {
  background-color: transparent; /* Remove the gray background on active links in IE 10 */
}

a:active,
a:hover {
  outline-width: 0; /* Remove the outline when hovering in all browsers */
}

code,
kbd,
pre,
samp {
  font-family: monospace, monospace; /* Specify the font family of code elements */
}

pre {
  font-size: 1em; /* Correct the odd `em` font sizing in all browsers */
}

b,
strong {
  font-weight: bolder; /* Add the correct font weight in Chrome, Edge, and Safari */
}

/* https://gist.github.com/unruthless/413930 */
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

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

input {
  border-radius: 0;
}

/* Replace pointer cursor in disabled elements */
[disabled] {
  cursor: default;
}

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto; /* Correct the cursor style of increment and decrement buttons in Chrome */
}

[type="search"] {
  -webkit-appearance: textfield; /* Correct the odd appearance in Chrome and Safari */
  outline-offset: -2px; /* Correct the outline style in Safari */
}

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none; /* Remove the inner padding in Chrome and Safari on macOS */
}

textarea {
  overflow: auto; /* Internet Explorer 11+ */
  resize: vertical; /* Specify textarea resizability */
}

button,
input,
optgroup,
select,
textarea {
  font: inherit; /* Specify font inheritance of form elements */
}

optgroup {
  font-weight: bold; /* Restore the font weight unset by the previous rule */
}

button {
  overflow: visible; /* Address `overflow` set to `hidden` in IE 8/9/10/11 */
}

button,
select {
  text-transform: none; /* Firefox 40+, Internet Explorer 11- */
}

/* Apply cursor pointer to button elements */
button,
[type="button"],
[type="reset"],
[type="submit"],
[role="button"] {
  cursor: pointer;
  color: inherit;
}

/* Remove inner padding and border in Firefox 4+ */
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/* Replace focus style removed in the border reset above */
button:-moz-focusring,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  outline: 1px dotted ButtonText;
}

button,
html [type="button"], /* Prevent a WebKit bug where (2) destroys native `audio` and `video`controls in Android 4 */
[type="reset"],
[type="submit"] {
  -webkit-appearance: button; /* Correct the inability to style clickable types in iOS */
}

/* Remove the default button styling in all browsers */
button,
input,
select,
textarea {
  background-color: transparent;
  border-style: none;
}

a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline-width: 0;
}

/* Style select like a standard input */
select {
  -moz-appearance: none; /* Firefox 36+ */
  -webkit-appearance: none; /* Chrome 41+ */
}

select::-ms-expand {
  display: none; /* Internet Explorer 11+ */
}

select::-ms-value {
  color: currentColor; /* Internet Explorer 11+ */
}

legend {
  border: 0; /* Correct `color` not being inherited in IE 8/9/10/11 */
  color: inherit; /* Correct the color inheritance from `fieldset` elements in IE */
  display: table; /* Correct the text wrapping in Edge and IE */
  max-width: 100%; /* Correct the text wrapping in Edge and IE */
  white-space: normal; /* Correct the text wrapping in Edge and IE */
  max-width: 100%; /* Correct the text wrapping in Edge 18- and IE */
}

::-webkit-file-upload-button {
  /* Correct the inability to style clickable types in iOS and Safari */
  -webkit-appearance: button;
  color: inherit;
  font: inherit; /* Change font properties to `inherit` in Chrome and Safari */
}

/* # =================================================================
   # Specify media element style
   # ================================================================= */

img {
  border-style: none; /* Remove border when inside `a` element in IE 8/9/10 */
}

/* Add the correct vertical alignment in Chrome, Firefox, and Opera */
progress {
  vertical-align: baseline;
}

/* # =================================================================
   # Accessibility
   # ================================================================= */

/* Hide content from screens but not screenreaders */
@media screen {
  [hidden~="screen"] {
    display: inherit;
  }
  [hidden~="screen"]:not(:active):not(:focus):not(:target) {
    position: absolute !important;
    clip: rect(0 0 0 0) !important;
  }
}

/* Specify the progress cursor of updating elements */
[aria-busy="true"] {
  cursor: progress;
}

/* Specify the pointer cursor of trigger elements */
[aria-controls] {
  cursor: pointer;
}

/* Specify the unstyled cursor of disabled, not-editable, or otherwise inoperable elements */
[aria-disabled="true"] {
  cursor: default;
}

              
            
!

JS

              
                
              
            
!
999px

Console