1.label ~ input checkbox样式更改

选择器的运用

HTML

        <label class="input-radio">
          <input
              type="checkbox"
              :checked="isUsrPwd"
            ><span></span>
        </label>

思路：input框让其display:none，运用label相关标记标签的属性来占位，自己写一个可动态切换样式的按钮，点击时切换span:before、span:after的样式。

CSS

.input-radio {
  cursor: pointer;
  height: 48px;
  line-height: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.input-radio span {
  display: inline-block;
  height: 48px;
  line-height: 48px;
  padding-left: 24px;
  position: relative;
  font-size: 12px;
}
.input-radio span:before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid #999;
  box-sizing: border-box;
  border-radius: 25%;  // 如需要圆形的radio,则把这里改为50%；即可
  left: 7px;
  top: 16px
}
.input-radio span:after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  /* background-color: #26a3ff; */
  background: #26a3ff url(/static/images/go.png) no-repeat center;
  background-size: 14px 14px;
  box-sizing: border-box;
  border-radius: 1%;   // 如需要圆形的radio,则把这里改为50%；即可
  left: 9px;
  top: 18px;
  opacity: 0;
}
.input-radio input {
  display: none;
}
// input-radio下面的input被选中的情况下，后面的span:before修改样式
// ~：后面的所有元素；+：后面紧挨着的那个元素
.input-radio input:checked ~ span:before {
  border-color: #26a3ff;
  transition: border-color 0.5s ease-in;
}
.input-radio input:checked ~ span:after {
  opacity: 1;
  transition: opacity 0.3s ease-in;
}

修改前后对比

图片.png
图片.png
图片.png