常用CSS集合

主要是从tailwind.css借鉴的， 搞出一些自己常用的，容易记忆的常用CSS， 减少一些开发的时间。 毕竟tailwind.css功能过多过全， 加进项目里面，很多时候也是多了心智负担。不如针对自己要做的项目的，做一些特殊性的改造。

先从modern-normalize (opens new window)学习一下， 可以先引入一下这个文件来重置一些CSS

我们自己常用的， 从tailwind也可以借鉴一些过来

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

.flex {
  display: flex;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-row {
  display: flex;
  flex-direction: row;
}

.flex-1 {
  flex: 1 1 0%;
}
.flex-auto {
  flex: 1 1 auto;
}
.flex-initial {
  flex: 0 1 auto;
}
.flex-none {
  flex: none;
}
.flex-2 {
  flex: 2;
}
.flex-3 {
  flex: 3;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.align-start {
  align-items: flex-start;
}
.align-center {
  align-items: center;
}
.align-end {
  align-items: end;
}
.justify-start {
  justify-content: flex-start;
}
.justify-end {
  justify-content: flex-end;
}
.justify-between {
  justify-content: space-between;
}
.flex-nowrap {
  flex-wrap: nowrap;
}

.flex-wrap {
  flex-wrap: wrap;
}

.align-content-start {
  align-content: flex-start;
}

.w-100 {
  width: 100%;
}
.h-100 {
  height: 100%;
}
.w-0 {
  width: 0;
}
.h-0 {
  height: 0;
}

.bg-white {
  background-color: #fff;
}
.bg-aaa {
  background-color: #aaa;
}
.bg-bbb {
  background-color: #bbb;
}
.bg-ccc {
  background-color: #ccc;
}
.bg-red {
  background-color: red;
}

.bg-green {
  background-color: green;
}

.mb-2 {
  margin-bottom: 2px;
}
.mt-2 {
  margin-top: 2px;
}
.mr-2 {
  margin-right: 2px;
}
.ml-2 {
  margin-left: 2px;
}
.mt-4 {
  margin-top: 4px;
}
.mr-4 {
  margin-right: 4px;
}
.mb-4 {
  margin-bottom: 4px;
}
.ml-4 {
  margin-left: 4px;
}
.mt-8 {
  margin-top: 8px;
}
.mr-8 {
  margin-right: 8px;
}
.mb-8 {
  margin-bottom: 8px;
}
.ml-8 {
  margin-left: 8px;
}
.mt-12 {
  margin-top: 12px;
}
.mr-12 {
  margin-right: 12px;
}
.mb-12 {
  margin-bottom: 12px;
}
.ml-12 {
  margin-left: 12px;
}
.mt-16 {
  margin-top: 16px;
}
.mr-16 {
  margin-right: 16px;
}
.mb-16 {
  margin-bottom: 16px;
}
.ml-16 {
  margin-left: 16px;
}
.pt-2 {
  padding-top: 2px;
}
.pr-2 {
  padding-right: 2px;
}
.pb-2 {
  padding-bottom: 2px;
}
.pl-2 {
  padding-left: 2px;
}
.p-2 {
  padding: 2px;
}
.pt-4 {
  padding-top: 4px;
}
.pr-4 {
  padding-right: 4px;
}
.pb-4 {
  padding-bottom: 4px;
}
.pl-4 {
  padding-left: 4px;
}
.p-4 {
  padding: 4px;
}
.pt-8 {
  padding-top: 8px;
}
.pr-8 {
  padding-right: 8px;
}
.pb-8 {
  padding-bottom: 8px;
}
.pl-8 {
  padding-left: 8px;
}
.p-8 {
  padding: 8px;
}
.pt-16 {
  padding-top: 16px;
}
.pr-16 {
  padding-right: 16px;
}
.pb-16 {
  padding-bottom: 16px;
}
.pl-16 {
  padding-left: 16px;
}
.p-16 {
  padding: 16px;
}
.pt-32 {
  padding-top: 32px;
}
.pr-32 {
  padding-right: 32px;
}
.pb-32 {
  padding-bottom: 32px;
}
.pl-32 {
  padding-left: 32px;
}
.p-32 {
  padding: 32px;
}

.fs-12 {
  font-size: 12px !important;
}
.fs-14 {
  font-size: 14px !important;
}
.fs-16 {
  font-size: 16px !important;
}
.fs-18 {
  font-size: 18px !important;
}
.fs-20 {
  font-size: 20px !important;
}
.fs-24 {
  font-size: 24px !important;
}

.ovh {
  overflow: hidden;
}
.ova {
  overflow: auto;
}
.ovy-a {
  overflow-y: auto;
}
.ovx-a {
  overflow-x: auto;
}
.tar {
  text-align: right;
}
.tac {
  text-align: center;
}
.tal {
  text-align: left;
}
.fixed {
  position: fixed;
}
.relative {
  position: relative;
}
.absolute {
  position: absolute;
}
.sticky {
  position: sticky;
}
.absolute-fill {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
.inset-0 {
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
.left-0 {
  left: 0;
}
.right-0 {
  right: 0;
}
.top-0 {
  top: 0;
}
.bottom-0 {
  bottom: 0;
}

.color-333 {
  color: #333;
}
.color-666 {
  color: #666;
}
.color-999 {
  color: #999;
}
.fw-7 {
  font-weight: 700;
}
.fw-6 {
  font-weight: 600;
}
.fw-5 {
  font-weight: 500;
}
.fw-4 {
  font-weight: 400;
}
.hide-scrollbar::-webkit-scrollbar {
  width: 0 !important;
  display: none !important;
}
.lh-1 {
  line-height: 1;
}

.block {
  display: block;
}
.none {
  display: none;
}
.pointer {
  cursor: pointer;
}

/* 最多显示1行, 超出部分... */
.xd-ellipsis {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
/* 最多显示2行 */
.xd-multi-ellipsis--l2 {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
/* 最多显示3行 */
.xd-multi-ellipsis--l3 {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* 实现 Retina屏幕下的0.5px边框 */
[class*='xd-hairline'] {
  position: relative;
}
[class*='xd-hairline']:after {
  position: absolute;
  box-sizing: border-box;
  content: ' ';
  pointer-events: none;
  top: -50%;
  right: -50%;
  bottom: -50%;
  left: -50%;
  border: 0 solid #ebedf0;
  transform: scale(0.5);
}
.xd-hairline--top:after {
  border-top-width: 1px;
}
.xd-hairline--bottom:after {
  border-bottom-width: 1px;
}
.xd-hairline--left:after {
  border-left-width: 1px;
}
.xd-hairline--right:after {
  border-right-width: 1px;
}
.xd-hairline--top-bottom:after {
  border-width: 1px 0 1px 0;
}
.xd-hairline--surround:after {
  border-width: 1px;
}

.border-1-ccc {
  border: 1px solid #ccc;
}