目次
リセットCSSとは
詳しい説明はコチラをみてね▼
リセットCSSとユーザーエージェントとは?
各ブラウザに付属しているデフォルトのスタイル(ユーザーエージェント)を打ち消す、「リセットCSS」の説明にゃ。
にゃんこ1
環境が日々変わるので、リセットCSSは、毎年新しいものを使おうにゃ。
リセットCSSとはブラウザによるスタイルの差異をなくすことが目的。
一般的に、全てのスタイルを消すリセットCSSとデフォルトのスタイルを残したノーマライズCSSのどちらかを使う。
通常のCSSの上にリセットCSSを配置するにゃ。
CSSを記述していない状態表記
デフォルトのスタイルだけ残す
Normalize.css
すべてのブラウザでの表示を統一しながらも、デフォルトのスタイルを与えるリセットCSS
- marginやpaddingは0で統一
- h1タグやh2タグのfont-sizeなどはタグに合わせたサイズで表示
- ulタグやolタグも左側にpaddingが付けられるなどデフォルト状態である程度入っているCSS
メジャーなやつにゃ。
コピペはこちらから▼
/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.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;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:-.25em}sup{top:-.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}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .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{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}
Normalize.css参照ページ
https://necolas.github.io/normalize.css/
リンクで入れるときはこちら▼
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css">
<link rel="stylesheet" href="style.css">
Josh’s Custom CSS Reset
いい感じに調整されたオススメのリセットCSS! 詳しくは、コリスさんのページ説明をどうぞ。
良さそうにゃ♥
コピペはこちらから▼
/*
Josh's Custom CSS Reset
https://www.joshwcomeau.com/css/custom-css-reset/
*/
*,*::before,*::after{box-sizing:border-box}*{margin:0}html,body{height:100%}body{line-height:1.5;-webkit-font-smoothing:antialiased}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}#root,#__next{isolation:isolate}
引用サイト
https://coliss.com/articles/build-websites/operation/css/my-custom-css-reset.html
すべてリセット
デフォルトCSSを無効化し、いちからCSSを書いていきたい方におすすめ
こだわり派はこちらを♥
destyle.css
marginやpaddingなどをすべて0にして、font-sizeもすべて統一
コピペはこちらから▼
/*! destyle.css v3.0.2 | MIT License | https://github.com/nicolas-cusan/destyle.css */
/* Reset box-model and set borders */
/* ============================================ */
*,
::before,
::after {
box-sizing: border-box;
border-style: solid;
border-width: 0;
}
/* Document */
/* ============================================ */
/**
* 1. Correct the line height in all browsers.
* 2. Prevent adjustments of font size after orientation changes in iOS.
* 3. Remove gray overlay on links for iOS.
*/
html {
line-height: 1.15; /* 1 */
-webkit-text-size-adjust: 100%; /* 2 */
-webkit-tap-highlight-color: transparent; /* 3*/
}
/* Sections */
/* ============================================ */
/**
* Remove the margin in all browsers.
*/
body {
margin: 0;
}
/**
* Render the `main` element consistently in IE.
*/
main {
display: block;
}
/* Vertical rhythm */
/* ============================================ */
p,
table,
blockquote,
address,
pre,
iframe,
form,
figure,
dl {
margin: 0;
}
/* Headings */
/* ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
font-size: inherit;
font-weight: inherit;
margin: 0;
}
/* Lists (enumeration) */
/* ============================================ */
ul,
ol {
margin: 0;
padding: 0;
list-style: none;
}
/* Lists (definition) */
/* ============================================ */
dt {
font-weight: bold;
}
dd {
margin-left: 0;
}
/* Grouping content */
/* ============================================ */
/**
* 1. Add the correct box sizing in Firefox.
* 2. Show the overflow in Edge and IE.
*/
hr {
box-sizing: content-box; /* 1 */
height: 0; /* 1 */
overflow: visible; /* 2 */
border-top-width: 1px;
margin: 0;
clear: both;
color: inherit;
}
/**
* 1. Correct the inheritance and scaling of font size in all browsers.
* 2. Correct the odd `em` font sizing in all browsers.
*/
pre {
font-family: monospace, monospace; /* 1 */
font-size: inherit; /* 2 */
}
address {
font-style: inherit;
}
/* Text-level semantics */
/* ============================================ */
/**
* Remove the gray background on active links in IE 10.
*/
a {
background-color: transparent;
text-decoration: none;
color: inherit;
}
/**
* 1. Remove the bottom border in Chrome 57-
* 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
*/
abbr[title] {
text-decoration: underline dotted; /* 2 */
}
/**
* Add the correct font weight in Chrome, Edge, and Safari.
*/
b,
strong {
font-weight: bolder;
}
/**
* 1. Correct the inheritance and scaling of font size in all browsers.
* 2. Correct the odd `em` font sizing in all browsers.
*/
code,
kbd,
samp {
font-family: monospace, monospace; /* 1 */
font-size: inherit; /* 2 */
}
/**
* 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;
}
/* Replaced content */
/* ============================================ */
/**
* Prevent vertical alignment issues.
*/
svg,
img,
embed,
object,
iframe {
vertical-align: bottom;
}
/* Forms */
/* ============================================ */
/**
* Reset form fields to make them styleable.
* 1. Make form elements stylable across systems iOS especially.
* 2. Inherit text-transform from parent.
*/
button,
input,
optgroup,
select,
textarea {
-webkit-appearance: none; /* 1 */
appearance: none;
vertical-align: middle;
color: inherit;
font: inherit;
background: transparent;
padding: 0;
margin: 0;
border-radius: 0;
text-align: inherit;
text-transform: inherit; /* 2 */
}
/**
* Reset radio and checkbox appearance to preserve their look in iOS.
*/
[type="checkbox"] {
-webkit-appearance: checkbox;
appearance: checkbox;
}
[type="radio"] {
-webkit-appearance: radio;
appearance: radio;
}
/**
* Correct cursors for clickable elements.
*/
button,
[type="button"],
[type="reset"],
[type="submit"] {
cursor: pointer;
}
button:disabled,
[type="button"]:disabled,
[type="reset"]:disabled,
[type="submit"]:disabled {
cursor: default;
}
/**
* Improve outlines for Firefox and unify style with input elements & buttons.
*/
:-moz-focusring {
outline: auto;
}
select:disabled {
opacity: inherit;
}
/**
* Remove padding
*/
option {
padding: 0;
}
/**
* Reset to invisible
*/
fieldset {
margin: 0;
padding: 0;
min-width: 0;
}
legend {
padding: 0;
}
/**
* Add the correct vertical alignment in Chrome, Firefox, and Opera.
*/
progress {
vertical-align: baseline;
}
/**
* Remove the default vertical scrollbar in IE 10+.
*/
textarea {
overflow: auto;
}
/**
* Correct the cursor style of increment and decrement buttons in Chrome.
*/
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
height: auto;
}
/**
* 1. Correct the outline style in Safari.
*/
[type="search"] {
outline-offset: -2px; /* 1 */
}
/**
* 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. Fix font inheritance.
*/
::-webkit-file-upload-button {
-webkit-appearance: button; /* 1 */
font: inherit; /* 2 */
}
/**
* Clickable labels
*/
label[for] {
cursor: pointer;
}
/* Interactive */
/* ============================================ */
/*
* Add the correct display in Edge, IE 10+, and Firefox.
*/
details {
display: block;
}
/*
* Add the correct display in all browsers.
*/
summary {
display: list-item;
}
/*
* Remove outline for editable content.
*/
[contenteditable]:focus {
outline: auto;
}
/* Tables */
/* ============================================ */
/**
1. Correct table border color inheritance in all Chrome and Safari.
*/
table {
border-color: inherit; /* 1 */
border-collapse: collapse;
}
caption {
text-align: left;
}
td,
th {
vertical-align: top;
padding: 0;
}
th {
text-align: left;
font-weight: bold;
}
こちらを引用させていただきました
https://github.com/nicolas-cusan/destyle.css/blob/master/destyle.css
時々、最新のリセットCSSを確認してみてにゃ。
用途にあったリセットCSSを使ってね!