CSS初期値一覧

レスポンシブサイトを制作する時によく使うため、まとめました。
初期化する値としてinitialがありますがIEは対応しておりませんので、IEに対応する場合にご利用ください。

A

align-content: normal;
align-items: normal;
align-self: auto;
animation: none;
animation-delay: 0s;
animation-direction: normal;
animation-duration: 0s;
animation-fill-mode: none;
animation-iteration-count: 1;
animation-name: none;
animation-play-state: running;
animation-timing-function: ease;

B

backface-visibility: visible;
background: none;
background-attachment: scroll;
background-blend-mode: normal;
background-clip: border-box;
background-color: transparent;
background-image: none;
background-origin: padding-box;
background-position: 0% 0%;
background-repeat: repeat;
background-size: auto auto;
border: none;
border-bottom: 0;
border-bottom-color: currentcolor;
border-bottom-left-radius: 0;
border-bottom-right-radius: 0;
border-bottom-style: none;
border-bottom-width: medium;
border-collapse: separate;
border-color: currentColor;
border-image-outset: 0;
border-image-repeat: stretch;
border-image-slice: 100%;
border-image-source: none;
border-image-width: 1;
border-left: 0;
border-left-color: currentcolor;
border-left-style: none;
border-left-width: medium;
border-radius: 0;
border-right: 0;
border-right-color: currentcolor;
border-right-style: none;
border-right-width: medium;
border-spacing: 0;
border-style: none;
border-top: 0;
border-top-color: currentcolor;
border-top-left-radius: 0;
border-top-right-radius: 0;
border-top-style: none;
border-top-width: medium;
border-width: medium;
bottom: auto;
box-decoration-break: slice;
box-shadow: none;
box-sizing: content-box;
break-after: auto;
break-before: auto;
break-inside: auto;

C

caption-side: top;
caret-color: auto;
clear: none;
color: ブラウザによる;
column-count: auto;
column-fill: balance;
column-gap: normal;
column-rule: none;
column-rule-color: currentcolor;
column-rule-style: none;
column-rule-width: medium;
column-span: none;
column-width: auto;
columns: auto;
content: normal;
counter-increment: none;
counter-reset: none;
cursor: auto;

D

direction: ltr;
display: inline;

E

empty-cells: show;

F

filter: none;
flex: 0 auto;
flex-basis: auto;
flex-direction: row;
flex-flow: row nowrap;
flex-grow: 0;
flex-shrink: 0;
flex-wrap: 1;
float: nowrap;
font: normal;
font-family: ユーザエージェントに依存;
font-feature-settings: normal;
font-kerning: auto;
font-language-override: normal;
font-size: medium;
font-size-adjust: none;
font-stretch: normal;
font-style: normal;
font-synthesis: style weight;
font-variant: normal;
font-variant-alternates: normal;
font-variant-caps: normal;
font-variant-east-asian: normal;
font-variant-ligatures: normal;
font-variant-numeric: normal;
font-variant-position: normal;
font-weight: normal;

G

grid: none none none auto auto row;
grid-area: auto;
grid-auto-columns: auto;
grid-auto-flow: row;
grid-auto-rows: auto;
grid-column: auto;
grid-column-end: auto;
grid-column-gap: normal;
grid-column-start: auto;
grid-gap: normal;
grid-row: auto;
grid-row-end: auto;
grid-row-gap: normal;
grid-row-start: auto;
grid-template: none;
grid-template-areas: none;
grid-template-columns: none;
grid-template-rows: none;

H

hanging-punctuation: none;
height: auto;
hyphens: manual;

I

image-rendering: auto;
isolation: auto;

J

justify-content: normal;
justify-items: legacy;
justify-self: auto;

L

left: auto;
letter-spacing: normal;
line-break: auto;
line-height: normal;
list-style: none;
list-style-image: none;
list-style-position: outside;
list-style-type: disc;

M

margin: 0;
margin-block-end: 0;
margin-block-start: 0;
margin-bottom: 0;
margin-inline-end: 0;
margin-inline-start: 0;
margin-left: 0;
margin-right: 0;
margin-top: 0;
mask-clip: border-box;
mask-composite: add;
mask-image: none;
mask-mode: match-source;
mask-origin: border-box;
mask-position: center;
mask-repeat: no-repeat;
mask-size: auto;
mask-type: luminance;
max-height: none;
max-width: none;
min-block-size: 0;
min-height: auto;
min-inline-size: 0;
min-width: auto;
mix-blend-mode: normal;

O

object-fit: fill;
object-position: 50% 50%;
opacity: 1.0;
order: 0;
orphans: 2;
outline: 0;
outline-color: invert or currentColor;
outline-offset: 0;
outline-style: none;
outline-width: medium;
overflow: visible;
overflow-wrap: normal;
overflow-x: visible;
overflow-y: visible;

P

padding: 0;
padding-block-end: 0;
padding-block-start: 0;
padding-bottom: 0;
padding-left: 0;
padding-right: 0;
padding-top: 0;
page-break-after: auto;
page-break-before: auto;
page-break-inside: auto;
perspective: none;
perspective-origin: 50% 50%;
place-content: normal;
pointer-events: auto;
position: static;

Q

quotes: ユーザーエージェントに依存;

R

resize: none;
right: auto;

S

scroll-behavior: auto;
scroll-snap-type: none;
shape-image-threshold: 0.0;
shape-margin: 0;
shape-outside: none;

T

tab-size: 8;
table-layout: auto;
text-align: start;
text-align-last: auto;
text-combine-upright: none;
text-decoration: none;
text-decoration-color: currentcolor;
text-decoration-line: none;
text-decoration-style: solid;
text-indent: 0;
text-justify: auto;
text-orientation: mixed;
text-overflow: clip;
text-shadow: none;
text-transform: none;
text-underline-position: auto;
top: auto;
transform: none;
transform-origin: 50% 50% 0;
transform-style: flat;
transition: none;
transition-delay: 0s;
transition-duration: 0s;
transition-property: all;
transition-timing-function: ease;

U

unicode-bidi: normal;
user-select: auto;

V

vertical-align: baseline;
visibility: visible;

W

white-space: normal;
widows: 2;
width: auto;
will-change: auto;
word-break: normal;
word-spacing: normal;
word-wrap: normal;
writing-mode: horizontal-tb;

Z

z-index: auto;