如何在以下形状周围添加框阴影[重复]

Question

大家好，我正在尝试在使用 css 创建的自定义形状周围添加一个盒子阴影 如下图所示

body{
   padding:50px
}
div{
    height: 45px;
    width: 209px;
    float: left;
    color: #fff;
    line-height: 45px;
    text-align: center;
    position: relative;
    font-family: Arial;
    font-weight: bold;
    font-size: 16px;
    background-color: #50b3cf;
}
div::after{
    position: absolute;
    z-index: 2;
    content: "";
    width: 0;
    height: 0;
    border-top: 22.5px solid transparent;
    border-bottom: 22.5px solid transparent;
    right: 1px;
    transform: translateX(100%);
    border-left: 22.5px solid #50b3cf;
}

<div></div>

Answer 1

1. 声明伪元素的值 width & height 属性；
2. 清除边界；
3. 然后旋转有问题的伪元素；
4. 现在根据需要申请box-shadow；
5. 拿一个冷的；

body{
   padding:50px
}
div{
    height: 45px;
    width: 209px;
    float: left;
    color: #fff;
    line-height: 45px;
    text-align: center;
    position: relative;
    font-family: Arial;
    font-weight: bold;
    font-size: 16px;
    background-color: #50b3cf;
    box-shadow: 0px 0px 5px 3px #000000;
}
div::after {
    position: absolute;
    z-index: 2;
    content: "";
    left: 100%;
    width: 32px;
    height: 32px;
    background: #50b3cf;
    transform: rotate(46deg);
    transform-origin: 0 0;
    box-shadow: 3px -3px 5px 0px #000000;
}
div::before { /* ver 2.0 Patch */
    content: "";
    position: absolute;
    background: #50b3cf;
    top: 0;
    bottom: 0;
    width: 25px;
    right: 0;
    z-index: 9;
}

<div></div>

Answer 2

.box{
	border:1px solid white;
	width:400px;
	height:150px;	
	margin-left:40px;
	box-shadow: 0 0 9px 3px rgba(0,0,0,0.5);
}
.arrow {
   width: 100px;
   height: 100px;
   position: relative;
   top:20px;
   left:-100px;
   overflow: hidden;
   box-shadow: 0 10px 10px -17px rgba(0,0,0,0.5);
     transform: rotate(270deg);  
}
.arrow:after {
   content: "";
   position: absolute;
   width: 50px;
   height: 50px;
   background: white;
   transform: rotate(45deg);
   top: 76px;
   left: 25px;
   box-shadow: -2px -2px 9px 0px rgba(0,0,0,0.5);
}

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

试试这个代码

Answer 3

也许这就是你想要做的。
第一个有盒子阴影，第二个没有盒子阴影，但您可以使用此代码添加它box-shadow: 0px 0px 6px 0px #000;in class "arrow-r"

<style type="text/css">
    .main-box{
      position: relative;
      padding: 0 35px 90px;
}
.box{
  font-size: 20px;
    position: relative;
    display: inline-block;
    clear: both;
    margin-bottom: 8px;
    padding: 13px 14px;
    vertical-align: top;
    border-radius: 5px;
}
.arrow-l {

  float: left;
  color: #fff;
  background-color: #08abf4;    box-shadow: 0px 0px 6px 0px #000;

}
.arrow-r {

  float: right;
  color: #1a1a1a;
  background-color: #e2e2e2;

}
.box:before{
      position: absolute;
    top: 24px;
    width: 8px;
    height: 6px;
    content: '\00a0';
    -webkit-transform: rotate(30deg) skew(-36deg);
    transform: rotate(30deg) skew(-36deg);
}
.box.left:before {
  left: -4px;
  background-color: #08abf4;

}

.box:before{
      position: absolute;
    top: 21px;
    width: 8px;
    height: 6px;
    content: '\00a0';
    -webkit-transform: rotate(30deg) skew(-36deg);
    transform: rotate(30deg) skew(-36deg);
}
.box.right:before {
  right: -4px;
  background-color: #e2e2e2;
}

</style>

<div class="main-box">
  <div class="box arrow-l left">
                    I'm Liam Lababidi
                </div>
    <div class="box arrow-r right">
                    What about u?
                </div>
</div>

Answer 4

您想为此使用box-shadow: 10px 10px 5px #888888;。每个px表示哪边，#表示颜色。

body{
   padding:50px
}
div{
    height: 45px;
    width: 209px;
    float: left;
    color: #fff;
    line-height: 45px;
    text-align: center;
    position: relative;
    font-family: Arial;
    font-weight: bold;
    font-size: 16px;
    background-color: #50b3cf;
    box-shadow: 0px 10px 5px #888888;
}
div::after{
    position: absolute;
    z-index: 2;
    content: "";
    width: 0;
    height: 0;
    border-top: 22.5px solid transparent;
    border-bottom: 22.5px solid transparent;
    right: 1px;
    transform: translateX(100%);
    border-left: 22.5px solid #50b3cf;
}

<div></div>