js+css实现select的美化效果_javascript技巧

.div-select
{
  border: solid 1px #999;
  height: 40px;
  line-height: 40px;
  cursor: default;
}

.div-select-text
{
  float: left;
  background-color: #fff;
  height: 100%;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}

  .div-select-text > div
  {
    padding: 3px;
    line-height: 34px;
  }

.div-select-arrow
{
  background-color: #fff;
  float: right;
  width: 40px;
  height: 100%;
  color: #999;
  cursor: default;
}

  .div-select-arrow > div
  {
    border: solid 1px #999;
    margin: 2px;
    height: 34px;
    background-color: #f2f2f2;
    text-align: center;
    line-height: 34px;
    font-size: 22px;
  }

.div-select-list
{
  position: absolute;
  float: left;
  top: 100px;
  left: 100px;
  border: solid 1px #999;
  max-height: 300px;
  overflow: auto;
  background-color: #9f9;
  display: none;
  z-index: 9100;
}

  .div-select-list .div-select-item:nth-child(2n+1)
  {
    background-color: #fff;
  }

.div-select-item
{
  height: 50px;
  line-height: 50px;
  padding-left: 3px;
  padding-right: 3px;
  background-color: #f2f2f2;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}

.div-select-item-hover
{
  background-color: #3399ff!important;
}

.div-select-selected
{
  background-color: #3399ff !important;
}

.div-select
{
  border: solid 1px #999;
  height: 40px;
  line-height: 40px;
  cursor: default;
}

.div-select-text
{
  float: left;
  background-color: #fff;
  height: 100%;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
  font-size: 16px;
  font-family: 微软雅黑,雅黑;
}

  .div-select-text > div
  {
    padding: 3px;
    line-height: 34px;
  }

.div-select-arrow
{
  background-color: #fff;
  float: right;
  width: 40px;
  height: 100%;
  color: #999;
  cursor: default;
}

  .div-select-arrow > div
  {
    border: solid 1px #999;
    margin: 2px;
    height: 34px;
    background-color: #f2f2f2;
    text-align: center;
    line-height: 34px;
    font-size: 22px;
  }

.div-select-list
{
  position: absolute;
  float: left;
  top: 100px;
  left: 100px;
  border: solid 1px #999;
  max-height: 300px;
  overflow: hidden;
  background-color: #9f9;
  display: none;
  z-index: 9100;
  font-size: 16px;
  font-family: 微软雅黑,雅黑;
}

  .div-select-list .div-select-item:nth-child(2n+1)
  {
    background-color: #fff;
  }

.div-select-item
{
  height: 50px;
  line-height: 50px;
  padding-left: 3px;
  padding-right: 3px;
  background-color: #f2f2f2;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}

.div-select-item-hover
{
  background-color: #3399ff!important;
}

.div-select-selected
{
  background-color: #3399ff !important;
}

.div-select-list-scrollbar
{
  position: absolute;
  float: left;
  border: solid 1px #999;
  border-left: 0;
  background-color: #e8e8ec;
  width: 40px;
  height: 300px;
  display: none;
  cursor: default;
  z-index: 9101;
}

.div-select-scrollbar-up
{
  border-bottom: solid 1px #fff;
  height: 39px;
  font-size: 22px;
  line-height: 39px;
  color: #999;
  background-color: #cdcdcd;
  text-align: center;
}

.div-select-scrollbar-pos
{
  height: 220px;
}

  .div-select-scrollbar-pos > div:last-child
  {
    width: 40px;
    height: 20px;
    background-color: #cdcdcd;
  }

.div-select-scrollbar-down
{
  border-top: solid 1px #fff;
  height: 39px;
  font-size: 22px;
  line-height: 39px;
  color: #999;
  background-color: #cdcdcd;
  text-align: center;
}