Remove Box Shadow from Left Side

Question

I'm creating a custom sider toggle for an ant design project and I'm struggling to preserve three sides (i.e top, right, left) of the box-shadow (i.e. 2px 2px 8px rgba(0, 0, 0, 0.15)) and remove the box-shadow/blur entirely from the left side. My most recent attempt is below. Any thoughts?

JSX:

<span onClick={this.toggleCollapse} className="ant-layout-sider-zero-width-trigger">
  {collapsed ? <Icon type="menu-unfold" /> : <Icon type="menu-fold" />}
</span>

LESS:

.ant-layout-sider-zero-width-trigger {
  background: #fff;
  color: #000000a6;
  box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.15), inset -2px 0px 0px #fff;

  &:hover {
    background: #fff;
  }
}

btw I've seen similar questions on Stack but none worked for me after much experimentation.

Answer 1

An idea is to use another container and rely on some overflow:

.container {
  display:inline-block;
  padding:5px 5px 5px 0;
  overflow:hidden;
}

.box {
  width:200px;
  height:50px;
  background: #fff;
  color: #000000a6;
  box-shadow: 
    2px 2px 8px rgba(0, 0, 0, 0.15), 
    inset -2px 0px 0px #fff;
}

<div class="container">
<div class="box">
</div>
</div>