CSS：在纯CSS箭头上创建边框 [英] CSS: Make border on pure-CSS arrow

问题描述

我有这个程式码片段：

  .multiply-button {display：table; background：rgba（0，0，0，0）; border：none;颜色：白色; padding：0;} multiply-button-content {display：table-cell;背景：绿色; padding：10px 9px; border：solid 1px black; border-right：none！important;} multiply-button-arrow {display：table-cell; width：0px; height：0px; border-style：solid; border-width：20px 0 20px 12px; border-color：transparent透明绿色;}  

 < button id =multiply-buttonclass =multiply-button> < div class =multiply-button-content>乘法< / div> < div class =multiply-button-arrow>< / div>< / button>  

我需要在这个箭头按钮上做边框。

解决方案

我可以很容易地边框矩形部分（我已经做了）

  .multiply-button {display：table; background：rgba（0，0，0，0）; border：none;颜色：白色; padding：0;} multiply-button-content {display：table-cell;背景：绿色; padding：0 9px; border：solid 1px black; border-right：none！important;位置：相对; vertical-align：middle; height：40px; / * double the border width * / box-sizing：border-box;}。multiply-button-content：after，.multiply-button-content：before {left：100％; top：50％;边框：实心透明; content：; height：0; width：0; position：absolute; pointer-events：none; border-width：20px 0 20px 12px; margin-top：-20px;}。multiply-button-content：after {border-color：rgba（0，128，0，0）; border-left-color：＃008000; margin-left：-1px;}。multiply-button-content：before {border-color：rgba（0，0，0，0）; border-left-color：＃000000;}  

  button id =multiply-buttonclass =multiply-button> < div class =multiply-button-content>乘法< / div>< / button>  

这是一个有用的工具

I have this code snippet:

.multiply-button {
  display: table;
  background: rgba(0, 0, 0, 0);
  border: none;
  color: white;
  padding: 0;
}
.multiply-button-content {
  display: table-cell;
  background: green;
  padding: 10px 9px;
  border: solid 1px black;
  border-right: none !important;
}
.multiply-button-arrow {
  display: table-cell;
  width: 0px;
  height: 0px;
  border-style: solid;
  border-width: 20px 0 20px 12px;
  border-color: transparent transparent transparent green;
}

<button id="multiply-button" class="multiply-button">
  <div class="multiply-button-content">Multiply</div>
  <div class="multiply-button-arrow"></div>
</button>

I need to make border on this "arrowed" button. I can easily border rectangle part (I've already did it), but how to make this border on triangle part?

解决方案

The following should do what you need

.multiply-button {
  display: table;
  background: rgba(0, 0, 0, 0);
  border: none;
  color: white;
  padding: 0;
}
.multiply-button-content {
  display: table-cell;
  background: green;
  padding: 0 9px;
  border: solid 1px black;
  border-right: none !important;
  position: relative;
  vertical-align:middle;
  height: 40px; /* double the border width */
  box-sizing: border-box;
}
.multiply-button-content:after,
.multiply-button-content:before {
  left: 100%;
  top: 50%;
  border: solid transparent;
  content: " ";
  height: 0;
  width: 0;
  position: absolute;
  pointer-events: none;
  border-width: 20px 0 20px 12px;
  margin-top: -20px;
}
.multiply-button-content:after {
  border-color: rgba(0, 128, 0, 0);
  border-left-color: #008000;
  margin-left: -1px;
}
.multiply-button-content:before {
  border-color: rgba(0, 0, 0, 0);
  border-left-color: #000000;
}

<button id="multiply-button" class="multiply-button">
  <div class="multiply-button-content">Multiply</div>
</button>

This is a useful tool

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