1像素边框

实现 1像素border

vux里面的1像素

1像素px

html {
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  line-height: 1.6;
  font-family: -apple-system-font, "Helvetica Neue", sans-serif;
}
* {
  margin: 0;
  padding: 0;
}
a img {
  border: 0;
}
a {
  text-decoration: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
/** env = windows **/
::-webkit-input-placeholder {
  font-family: -apple-system-font, "Helvetica Neue", sans-serif;
}
/** prevent default menu callout **/
a {
  -webkit-touch-callout: none;
}
.vux-1px,
.vux-1px-t,
.vux-1px-b,
.vux-1px-tb,
.vux-1px-l,
.vux-1px-r {
  position: relative;
}
.vux-1px:before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  width: 200%;
  border: 1px solid #C7C7C7;
  color: #C7C7C7;
  height: 200%;
  transform-origin: left top;
  transform: scale(0.5);
}
.vux-1px-t:before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  height: 1px;
  border-top: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 0 0;
  transform: scaleY(0.5);
}
.vux-1px-b:after {
  content: " ";
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  height: 1px;
  border-bottom: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 0 100%;
  transform: scaleY(0.5);
}
.vux-1px-tb:before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  height: 1px;
  border-top: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 0 0;
  transform: scaleY(0.5);
}
.vux-1px-tb:after {
  content: " ";
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  height: 1px;
  border-bottom: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 0 100%;
  transform: scaleY(0.5);
}
.vux-1px-l:before {
  content: " ";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  bottom: 0;
  border-left: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 0 0;
  transform: scaleX(0.5);
}
.vux-1px-r:after {
  content: " ";
  position: absolute;
  right: 0;
  top: 0;
  width: 1px;
  bottom: 0;
  border-right: 1px solid #C7C7C7;
  color: #C7C7C7;
  transform-origin: 100% 0;
  transform: scaleX(0.5);
}
html,
body {
  height: 100% !important;
  margin: 0;
  padding: 0;
}
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  margin: 0;
  padding: 0;
  /* position: fixed; */
  width: 100%;
  height: 100%;
  background: white;
}