为什么 laravel 安装中没有 tailwind 中的某些 类?

Why some classes in tailwind is not present in laravel install?

我想知道为什么 tailwind 管理模板不起作用,后来我发现我的 app.css.

中没有一些 类

我已经按照https://tailwindcss.com/docs/guides/laravel中的安装进行了安装。

这些是我 app.css 中的 类。

为什么 app.css 中没有 类? 例如:bg-gray-800、w-full、h-20 等。

/*
! tailwindcss v3.0.22 | MIT License | https://tailwindcss.com
*//*
1. Prevent padding and border from affecting element width. (https://github.com/mozdevs/cssremedy/issues/4)
2. Allow adding a border to an element by just adding a border-width. (https://github.com/tailwindcss/tailwindcss/pull/116)
*/

*,
::before,
::after {
  box-sizing: border-box; /* 1 */
  border-width: 0; /* 2 */
  border-style: solid; /* 2 */
  border-color: #e5e7eb; /* 2 */
}

::before,
::after {
  --tw-content: '';
}

/*
1. Use a consistent sensible line-height in all browsers.
2. Prevent adjustments of font size after orientation changes in iOS.
3. Use a more readable tab size.
4. Use the user's configured `sans` font-family by default.
*/

html {
  line-height: 1.5; /* 1 */
  -webkit-text-size-adjust: 100%; /* 2 */
  -moz-tab-size: 4; /* 3 */
  -o-tab-size: 4;
     tab-size: 4; /* 3 */
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; /* 4 */
}

/*
1. Remove the margin in all browsers.
2. Inherit line-height from `html` so users can set them as a class directly on the `html` element.
*/

body {
  margin: 0; /* 1 */
  line-height: inherit; /* 2 */
}

/*
1. Add the correct height in Firefox.
2. Correct the inheritance of border color in Firefox. (https://bugzilla.mozilla.org/show_bug.cgi?id=190655)
3. Ensure horizontal rules are visible by default.
*/

hr {
  height: 0; /* 1 */
  color: inherit; /* 2 */
  border-top-width: 1px; /* 3 */
}

/*
Add the correct text decoration in Chrome, Edge, and Safari.
*/

abbr:where([title]) {
  -webkit-text-decoration: underline dotted;
          text-decoration: underline dotted;
}

/*
Remove the default font size and weight for headings.
*/

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

/*
Reset links to optimize for opt-in styling instead of opt-out.
*/

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

/*
Add the correct font weight in Edge and Safari.
*/

b,
strong {
  font-weight: bolder;
}

/*
1. Use the user's configured `mono` font family by default.
2. Correct the odd `em` font sizing in all browsers.
*/

code,
kbd,
samp,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; /* 1 */
  font-size: 1em; /* 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;
}

/*
1. Remove text indentation from table contents in Chrome and Safari. (https://bugs.chromium.org/p/chromium/issues/detail?id=999088, https://bugs.webkit.org/show_bug.cgi?id=201297)
2. Correct table border color inheritance in all Chrome and Safari. (https://bugs.chromium.org/p/chromium/issues/detail?id=935729, https://bugs.webkit.org/show_bug.cgi?id=195016)
3. Remove gaps between table borders by default.
*/

table {
  text-indent: 0; /* 1 */
  border-color: inherit; /* 2 */
  border-collapse: collapse; /* 3 */
}

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

button,
input,
optgroup,
select,
textarea {
  font-family: inherit; /* 1 */
  font-size: 100%; /* 1 */
  line-height: inherit; /* 1 */
  color: inherit; /* 1 */
  margin: 0; /* 2 */
  padding: 0; /* 3 */
}

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

button,
select {
  text-transform: none;
}

/*
1. Correct the inability to style clickable types in iOS and Safari.
2. Remove default button styles.
*/

button,
[type='button'],
[type='reset'],
[type='submit'] {
  -webkit-appearance: button; /* 1 */
  background-color: transparent; /* 2 */
  background-image: none; /* 2 */
}

/*
Use the modern Firefox focus style for all focusable elements.
*/

:-moz-focusring {
  outline: auto;
}

/*
Remove the additional `:invalid` styles in Firefox. (https://github.com/mozilla/gecko-dev/blob/2f9eacd9d3d995c937b4251a5557d95d494c9be1/layout/style/res/forms.css#L728-L737)
*/

:-moz-ui-invalid {
  box-shadow: none;
}

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

progress {
  vertical-align: baseline;
}

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

::-webkit-inner-spin-button,
::-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.
*/

::-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 */
}

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

summary {
  display: list-item;
}

/*
Removes the default spacing and border for appropriate elements.
*/

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

fieldset {
  margin: 0;
  padding: 0;
}

legend {
  padding: 0;
}

ol,
ul,
menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/*
Prevent resizing textareas horizontally by default.
*/

textarea {
  resize: vertical;
}

/*
1. Reset the default placeholder opacity in Firefox. (https://github.com/tailwindlabs/tailwindcss/issues/3300)
2. Set the default placeholder color to the user's configured gray 400 color.
*/

input::-moz-placeholder, textarea::-moz-placeholder {
  opacity: 1; /* 1 */
  color: #9ca3af; /* 2 */
}

input:-ms-input-placeholder, textarea:-ms-input-placeholder {
  opacity: 1; /* 1 */
  color: #9ca3af; /* 2 */
}

input::placeholder,
textarea::placeholder {
  opacity: 1; /* 1 */
  color: #9ca3af; /* 2 */
}

/*
Set the default cursor for buttons.
*/

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

/*
Make sure disabled buttons don't get the pointer cursor.
*/
:disabled {
  cursor: default;
}

/*
1. Make replaced elements `display: block` by default. (https://github.com/mozdevs/cssremedy/issues/14)
2. Add `vertical-align: middle` to align replaced elements more sensibly by default. (https://github.com/jensimmons/cssremedy/issues/14#issuecomment-634934210)
   This can trigger a poorly considered lint error in some tools but is included by design.
*/

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block; /* 1 */
  vertical-align: middle; /* 2 */
}

/*
Constrain images and videos to the parent width and preserve their intrinsic aspect ratio. (https://github.com/mozdevs/cssremedy/issues/14)
*/

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

/*
Ensure the default browser behavior of the `hidden` attribute.
*/

[hidden] {
  display: none;
}

*, ::before, ::after {
  --tw-translate-x: 0;
  --tw-translate-y: 0;
  --tw-rotate: 0;
  --tw-skew-x: 0;
  --tw-skew-y: 0;
  --tw-scale-x: 1;
  --tw-scale-y: 1;
  --tw-pan-x:  ;
  --tw-pan-y:  ;
  --tw-pinch-zoom:  ;
  --tw-scroll-snap-strictness: proximity;
  --tw-ordinal:  ;
  --tw-slashed-zero:  ;
  --tw-numeric-figure:  ;
  --tw-numeric-spacing:  ;
  --tw-numeric-fraction:  ;
  --tw-ring-inset:  ;
  --tw-ring-offset-width: 0px;
  --tw-ring-offset-color: #fff;
  --tw-ring-color: rgb(59 130 246 / 0.5);
  --tw-ring-offset-shadow: 0 0 #0000;
  --tw-ring-shadow: 0 0 #0000;
  --tw-shadow: 0 0 #0000;
  --tw-shadow-colored: 0 0 #0000;
  --tw-blur:  ;
  --tw-brightness:  ;
  --tw-contrast:  ;
  --tw-grayscale:  ;
  --tw-hue-rotate:  ;
  --tw-invert:  ;
  --tw-saturate:  ;
  --tw-sepia:  ;
  --tw-drop-shadow:  ;
  --tw-backdrop-blur:  ;
  --tw-backdrop-brightness:  ;
  --tw-backdrop-contrast:  ;
  --tw-backdrop-grayscale:  ;
  --tw-backdrop-hue-rotate:  ;
  --tw-backdrop-invert:  ;
  --tw-backdrop-opacity:  ;
  --tw-backdrop-saturate:  ;
  --tw-backdrop-sepia:  ;
}
.fixed {
  position: fixed;
}
.relative {
  position: relative;
}
.top-0 {
  top: 0px;
}
.right-0 {
  right: 0px;
}
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}
.ml-1 {
  margin-left: 0.25rem;
}
.mt-2 {
  margin-top: 0.5rem;
}
.mr-2 {
  margin-right: 0.5rem;
}
.ml-2 {
  margin-left: 0.5rem;
}
.mt-4 {
  margin-top: 1rem;
}
.ml-4 {
  margin-left: 1rem;
}
.mt-8 {
  margin-top: 2rem;
}
.ml-12 {
  margin-left: 3rem;
}
.-mt-px {
  margin-top: -1px;
}
.flex {
  display: flex;
}
.grid {
  display: grid;
}
.hidden {
  display: none;
}
.h-5 {
  height: 1.25rem;
}
.h-8 {
  height: 2rem;
}
.h-16 {
  height: 4rem;
}
.min-h-screen {
  min-height: 100vh;
}
.w-5 {
  width: 1.25rem;
}
.w-8 {
  width: 2rem;
}
.w-auto {
  width: auto;
}
.max-w-6xl {
  max-width: 72rem;
}
.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.overflow-hidden {
  overflow: hidden;
}
.border-t {
  border-top-width: 1px;
}
.border-gray-200 {
  --tw-border-opacity: 1;
  border-color: rgb(229 231 235 / var(--tw-border-opacity));
}
.bg-white {
  --tw-bg-opacity: 1;
  background-color: rgb(255 255 255 / var(--tw-bg-opacity));
}
.bg-gray-100 {
  --tw-bg-opacity: 1;
  background-color: rgb(243 244 246 / var(--tw-bg-opacity));
}
.p-6 {
  padding: 1.5rem;
}
.py-4 {
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.px-6 {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.pt-8 {
  padding-top: 2rem;
}
.text-center {
  text-align: center;
}
.text-sm {
  font-size: 0.875rem;
  line-height: 1.25rem;
}
.text-lg {
  font-size: 1.125rem;
  line-height: 1.75rem;
}
.font-semibold {
  font-weight: 600;
}
.leading-7 {
  line-height: 1.75rem;
}
.text-gray-200 {
  --tw-text-opacity: 1;
  color: rgb(229 231 235 / var(--tw-text-opacity));
}
.text-gray-300 {
  --tw-text-opacity: 1;
  color: rgb(209 213 219 / var(--tw-text-opacity));
}
.text-gray-400 {
  --tw-text-opacity: 1;
  color: rgb(156 163 175 / var(--tw-text-opacity));
}
.text-gray-500 {
  --tw-text-opacity: 1;
  color: rgb(107 114 128 / var(--tw-text-opacity));
}
.text-gray-600 {
  --tw-text-opacity: 1;
  color: rgb(75 85 99 / var(--tw-text-opacity));
}
.text-gray-700 {
  --tw-text-opacity: 1;
  color: rgb(55 65 81 / var(--tw-text-opacity));
}
.text-gray-900 {
  --tw-text-opacity: 1;
  color: rgb(17 24 39 / var(--tw-text-opacity));
}
.underline {
  -webkit-text-decoration-line: underline;
          text-decoration-line: underline;
}
.antialiased {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.shadow {
  --tw-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);
  box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000), var(--tw-shadow);
}
@media (prefers-color-scheme: dark) {

  .dark\:border-gray-700 {
    --tw-border-opacity: 1;
    border-color: rgb(55 65 81 / var(--tw-border-opacity));
  }

  .dark\:bg-gray-900 {
    --tw-bg-opacity: 1;
    background-color: rgb(17 24 39 / var(--tw-bg-opacity));
  }

  .dark\:bg-gray-800 {
    --tw-bg-opacity: 1;
    background-color: rgb(31 41 55 / var(--tw-bg-opacity));
  }

  .dark\:text-gray-500 {
    --tw-text-opacity: 1;
    color: rgb(107 114 128 / var(--tw-text-opacity));
  }

  .dark\:text-white {
    --tw-text-opacity: 1;
    color: rgb(255 255 255 / var(--tw-text-opacity));
  }

  .dark\:text-gray-400 {
    --tw-text-opacity: 1;
    color: rgb(156 163 175 / var(--tw-text-opacity));
  }
}
@media (min-width: 640px) {

  .sm\:ml-0 {
    margin-left: 0px;
  }

  .sm\:block {
    display: block;
  }

  .sm\:h-20 {
    height: 5rem;
  }

  .sm\:items-center {
    align-items: center;
  }

  .sm\:justify-start {
    justify-content: flex-start;
  }

  .sm\:justify-between {
    justify-content: space-between;
  }

  .sm\:rounded-lg {
    border-radius: 0.5rem;
  }

  .sm\:px-6 {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .sm\:pt-0 {
    padding-top: 0px;
  }

  .sm\:text-left {
    text-align: left;
  }

  .sm\:text-right {
    text-align: right;
  }
}
@media (min-width: 768px) {

  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .md\:border-t-0 {
    border-top-width: 0px;
  }

  .md\:border-l {
    border-left-width: 1px;
  }
}
@media (min-width: 1024px) {

  .lg\:px-8 {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

您可以在此处的设置中添加管理文件的路径

  content: [
    "./resources/**/*.blade.php",
    "./resources/**/*.js",
    "./resources/**/*.vue",
  ],

我想会是

    "./resources/admin/**/*.blade.php",

你是 运行 npm watch 吗?首先,您需要告诉 tailwind 要跟踪哪些文件,而不是 npm run watch。 然后,Tailwind 会读取所有 类 的履带刀片并仅构建那些。

在指南中的第 4 点和第 6 点 https://tailwindcss.com/docs/guides/laravel

您可以将此 mix.disableNotifications(); 添加到 webpack.mix.js 中以禁用通知。