显然 1vw 不是 0.5vw+0.5vw

Question

所以我需要为画廊制作均匀间隔的元素，但显然 1vw =/= 2 * 0.5vw

.galeriacontainer {
  position: absolute;
  width: 80vw;
  max-width: 80vw;
  height: 75vh;
  max-height: 75vh;
  background-color: rgba(20, 20, 20, 0.4);
  left: 10vw;
  top: 12.5vh;
}
.itemframe {
  width: 19vw;
  max-width: 19vw;
  height: 24vh;
  max-height: 24vh;
  margin-left: 0.5vw;
  margin-top: 0.5vh;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.2);
  float: left;
  overflow: hidden;
}

<div class="galeriacontainer">
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
</div>

所以画廊容器是 80vw，所以如果我想要 4 个 div 均匀分布，我会做 80/4=20、20-1=19、1/2=0.5，对吗？看不懂为什么会这么奇怪

编辑：我的问题是如何让它按照应有的方式运行

Answer 1

您只在左侧设置了 0.5vw 边距，但忘记了等效的右侧边距：

.galeriacontainer {
  position: absolute;
  width: 80vw;
  max-width: 80vw;
  height: 75vh;
  max-height: 75vh;
  background-color: rgba(20, 20, 20, 0.4);
  left: 10vw;
  top: 12.5vh;
}
.itemframe {
  width: 19vw;
  max-width: 19vw;
  height: 24vh;
  max-height: 24vh;
  margin-left: 0.5vw;
  margin-right: 0.5vw;
  margin-top: 0.5vh;
  bottom: 0.5vh;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.2);
  float: left;
  overflow: hidden;
}

<div class="galeriacontainer">
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div><div class="itemframe">&nbsp;</div>
</div>

Answer 2

这似乎是合理的，但这不是一个很好的解决方案，只是微调大小和边距。

.galeriacontainer {
  position: absolute;
  width: 80vw;
  max-width: 80vw;
  height: 75vh;
  max-height: 75vh;
  margin: 0;
  padding: 0;
  background-color: rgba(20, 20, 20, 0.4);
  left: 10vw;
  top: 12.5vh;
}
.itemframe {
  width: 19.25vw;
  height: 23.75vh;
  margin-left: 0.6vw;
  margin-top: 0.95vh;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.2);
  float: left;
  overflow: hidden;
}

<div class="galeriacontainer">
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
  <div class="itemframe">&nbsp;</div>
</div>

Answer 3

好吧，那确实是错误的片段，我只是通过划分我从元素宽度而不是 19*4=76、80-76=4、4/5（这些元素之间的空格数，包括外面的)=0.8

.itemframe {
width: 19vw;
max-width: 19vw;
height: 24vh;
max-height: 24vh;
margin-left: 0.8vw;
margin-top: 0.75vh;
overflow: hidden;
background: rgba(255,255,255,0.2);
float: left;
overflow: hidden; }

显然 1vw 不是 0.5vw+0.5vw

Apparently 1vw is not 0.5vw+0.5vw

css

viewport-units