自定义尺寸的线性渐变 [英] Linear gradient with custom size

问题描述

我有这个设计:

已经用html/css创建了，但是我需要删除1和5的多余行.这是通过添加绝对位置元素来创建灰线而实现的，但是容器点的大小是敏感的.

It's already created with html/css but I need to remove the extra linea for 1 and 5. This was achieved by adding a position absolute element to create the grey line but the size of the container's dot is responsive.

我的想法是为每个容器创建一个背景线性渐变，如下所示:

My idea was creating a background linear-gradient for each container like so:

所有人:

background: linear-gradient(to right, grey 100%, transparent 0);

第一个:

background: linear-gradient(to left, grey 50%, transparent 0);

最后一个:

background: linear-gradient(to right, grey 50%, transparent 0);

但是我不知道如何缩小尺寸:

but I don't know how to make it smaller:

推荐答案

假定所有项目的宽度相同，则渐变应从1的中点开始，到5的中点结束，这意味着它应从1的中点开始.10％标记并在90％标记处结束，例如 linear-gradient(向右，透明10％，灰色10％，灰色90％，透明90％).

Assuming that all items have equal widths, then the gradient should start at the midpoint of 1 and end at the midpoint of 5, which means it should start at the 10% mark and end at the 90% mark, something like linear-gradient(to right, transparent 10%, grey 10%, grey 90%, transparent 90%).

要限制背景大小，可以使用 background-size:100％[DESIRED_HEIGHT] 进行控制.假设您希望条形为16px粗，那么您可以使用 background-size:100％16px .将其与 background-repeat:no-repeat (背景重复:不重复)结合使用，以避免渐变重复出现，而将 background-position:center center(中心居中)对其进行居中放置.

To restrict the size of the background, you can use background-size: 100% [DESIRED_HEIGHT] to control it. Say you want the bar to be 16px thick, then you can use background-size: 100% 16px. Combine that with background-repeat: no-repeat to avoid the gradient from repeating, and background-position: center center to center it.

请参见概念验证示例:

body {
  font-family: Arial, sans-serif;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-around;
  
  background-image: linear-gradient(to right, transparent 10%, grey 10%, grey 90%, transparent 90%);
  background-size: 100% 8px;
  background-repeat: no-repeat;
  background-position: center center;
}

ul.colors {
  background-image: linear-gradient(
    to right,
    transparent 10%,
    red 10%,
    red 30%,
    orange 30%,
    orange 50%,
    green 50%,
    green 70%,
    blue 70%,
    blue 90%,
    transparent 90%
  );
}

ul li {
  display: block;
  width: 48px;
  height: 48px;
  border: 1px solid #999;
  border-radius: 50%;
  background-color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

<strong>Plain</strong>
<ul>
  <li>1</li>
  <li>2</li>
  <li>3</li>
  <li>4</li>
  <li>5</li>
</ul>
<br /><br />
<strong>Colors</strong>
<ul class="colors">
  <li>1</li>
  <li>2</li>
  <li>3</li>
  <li>4</li>
  <li>5</li>
</ul>

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