css常用知识汇总

<label>
<input class="mui-checkbox checkbox-green" type="checkbox" name="all" id="all">
</label>

.mui-checkbox {
  margin-top: 26px;
  float: left;
  -webkit-appearance: none;
  position: relative;
  width: 22px;
  height: 22px;
  margin-right: 10px;
  border: solid 1px #666666;       
  background-clip: padding-box;
  display: inline;
}    //复选框大小
.mui-checkbox:focus {
  outline: 0 none;
  outline-offset: -2px; 
}
.mui-checkbox:checked {
  background-color: white;
  border: solid 1px #ff8100; 
}    //复选框点中时的边框颜色变化
.mui-checkbox.checkbox-green:checked {
  background-image: no-repeat;
  background-size: 20px 20px;
}    //复选框选中后，替换背景图片的大小
.checkbox-green:checked{
  background-image: url(../../img/shixi.png);
}    //选中样式背景
.mui-checkbox:checked:before {
  display: inline-block;
  margin-top: 1px;
  margin-left: 2px;
  width: 25px;
  height: 25px;
  font-size: 18px; 
}
只兼容谷歌浏览器

<div class="back">
  <input class="mui-checkbox checkbox-green"  type="checkbox" name="abatement" >
  <label></label>
</div>  

.xiur li input[name='abatement']:not(old) + label{
  margin-top: 10px;
  /* float: left;*/
  margin-left: 5px;
  /* -webkit-appearance: none;*/
  position: relative;
  width: 60px;
  height: 18px;
  margin-right: 10px;
  background-clip: padding-box;
  background-image: url(../img/choose/dedui.png);
  background-size: 60px 18px;
}
.mui-checkbox{
  background-image: url(../img/choose/dedui.png);
  background-size: 60px 18px;
  opacity: 0;
}
.mui-checkbox:focus {
  outline: 0 none;
  outline-offset: -2px;
  opacity: 0;
}
.mui-checkbox:checked {
  background-color: white;
}
.mui-checkbox.checkbox-green:checked {
  background-size: 60px 18px;
  opacity: 0;
}
.xiur li input[name='abatement']:checked + label {
  background-image: url(../img/choose/dedu.png);
}
.mui-checkbox:checked:before {
  display: inline-block;
  margin-top: 1px;
  margin-left: 2px;
  width: 1.44rem;
  height: .36rem;
}
兼容谷歌、火狐等浏览器

:before {
    content:"";
    right: 100%;
    margin-top: 11%;
    width: 0;
    height: 5px;
    border-top: 13px solid transparent;
    border-right: 31px solid #F1F1F1;
    border-bottom: 13px solid transparent;
    float: left;
    margin-left: -31px;
 }

#grad {
  background: -webkit-linear-gradient(left top, red , blue); /* Safari 5.1 - 6.0 */
  background: -o-linear-gradient(bottom right, red, blue); /* Opera 11.1 - 12.0 */
  background: -moz-linear-gradient(bottom right, red, blue); /* Firefox 3.6 - 15 */
  background: linear-gradient(to bottom right, red , blue); /* 标准的语法 */
}