css实现按钮圆角渐变样式

最终成果图:

在这里插入图片描述
背景:

最近项目数据大屏这个样式给我卡住了,起因是UI设计想要按钮边框渐圆角背景透明渐变,我查找了好多资料也在问答里提问,都没有实现初始样式。原因是如果想用渐变边框就会使用到属性border-image,这个属性有个bug就是不能和border-radius圆角一起使用。用过伪类和盒子的方法试了,如果想通过伪类或盒子去做,那么背景就不能是透明的。因此和UI设计商量了一手,改成了背景不透明的样式,我用的盒子。建议如果有我这种情况的,要么不要渐变边框不要圆角,要么渐变圆角边框不要透明背景。

代码:

<div class="btn-container">
  
  <div class="btn-group">
    <div class="btn-left" :class="activeCountNum===1?'active':''" @click="handleCount(1)">
      <div class="btn">按城市div>
    div>
    <div class="btn-center" :class="activeCountNum===2?'active':''" @click="handleCount(2)">
      <div class="btn">按空间div>
    div>
    <div class="btn-right" :class="activeCountNum===3?'active':''" @click="handleCount(3)">
      <div class="btn">按产品div>
    div>
  div>
  
  <div class="btn-export" @click="exportFile">
    <div class="export">导出div>
  div>
div>
handleCount(value){
  this.activeCountNum=Number(value)
},
.btn-container{
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  position: relative;
  margin:10px 20px 0 20px;
  .btn-group{
    display: flex;
    flex-direction: row;
    height: 32px;
    .btn-left,.btn-center,.btn-right{
      box-sizing: border-box;
      padding: 1px;
      background-image:linear-gradient(180deg, #4DAAFA 0%, #074B98 100%);
      .btn{
        margin-right: 1px;
        color: #ffffff;
        font-size: 14px;
        line-height: 30px;
        text-align: center;
        background: linear-gradient(180deg, #11498B 0%, #082F67 100%);
        padding:0 10px;
      }
      &:hover,&:active{
        .btn{
          background:linear-gradient(0deg, #064895 0%, #1C7DCF 100%)
        }
      }
    }
    .btn-left{
       border-radius: 4px 0 0 4px;
       padding-right: 0px;
       .btn{
          border-radius: 4px 0 0 4px;
          padding: 0 14px;
       }
     }
     .btn-right{
       border-radius: 0 4px 4px 0;
       padding-left: 0px;
       .btn{
         border-radius: 0 4px 4px 0;
       }
     }
     .active{
        .btn{
          background:linear-gradient(0deg, #064895 0%, #1C7DCF 100%)
        }
      }
    }
    .btn-export{
      width: 70px;
      height: 32px;
      box-sizing: border-box;
      padding: 1px;
      border-radius: 4px;
      background-image:linear-gradient(180deg, #4DAAFA 0%, #074B98 100%);
      .export{
        width: 100%;
        height: 100%;
        color: #ffffff;
        font-size: 14px;
        line-height: 30px;
        text-align: center;
        border-radius: 4px;
        background: linear-gradient(180deg, #11498B 0%, #082F67 100%);
      }
      &:hover,&:active{
        .export{
          background:linear-gradient(0deg, #064895 0%, #1C7DCF 100%)
        }
      }
    }
  }

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