.u-overlay{
  position: fixed;
  z-index: 999;
  top: -100px;
  left: 0;
  bottom: 0;
  right: 0;
  // height: 125%;//当body过高时会有bug不设置默认按body的高度
  width: 100%;
  background: #000;
  will-change: opacity;
  filter: alpha(opacity=0.5);
  opacity: 0.5;
  filter: alpha(opacity=50) \9;
  display: block;
  transition: all 300ms;
}

.u-msg-dialog{
  position: fixed;
  left: 0;
  right: 0;
  background-color: #FFFFFF;
  padding: 0;
  max-height: 70%;
  width: 55%;
  margin: auto;
  //overflow-y: auto;
  border-radius: 2px;
  will-change: top, opacity;
  display: block;
  filter: alpha(opacity=1);
  opacity: 1;
  filter: alpha(opacity=100) \9;
  transform: scaleX(1);
  top: 10%;
  box-shadow: 0 16px 28px 0 rgba(0, 0, 0, 0.22), 0 25px 55px 0 rgba(0, 0, 0, 0.21);
  @media only screen and (max-width : 992px){
    width:80%;
  }
  .u-msg-title{
    padding-left: 20px;
    padding-top: 24px;
  }
  h4{
    text-shadow: rgba(0,0,0,.15) 0 0 1px;
    margin: 0;
    line-height: 1.57142857;
    font-weight: 400;
    color: #424242;
    font-size:18px;
  }
  .u-msg-content{
    padding: 20px;
    overflow: auto;
    width: 100%;
    box-sizing:border-box;
     -moz-box-sizing: border-box;
     -webkit-box-sizing: border-box;
    font-size: 14px;
    line-height: 1.57142857;
    color: #757575;
    font-weight:300;

  }
  
  .u-msg-content h4{
   margin: 0;
  }
  .u-msg-footer{
    border-radius: 0 0 2px 2px;
    // background-color: #fafafa;
    padding: 4px 20px;
    height: 56px;
    width: 100%;
    box-sizing:border-box;
     -moz-box-sizing: border-box;
     -webkit-box-sizing: border-box;

  }
  .u-msg-button , .u-msg-ok , .u-msg-cancel, .u-msg-close{
    float: right;
  }
  
  .u-msg-cancel{
    margin-right:10px;
  }
  .u-msg-ok{
    margin-right:15px;
  }
  .u-msg-close{
      cursor: pointer;
    font-size: 21px;
    padding:15px 20px;
    padding-bottom:0px;
    
      filter:alpha(opacity=20); 
     -moz-opacity:0.2;
     -khtml-opacity:0.2; 
     opacity: .2;
     color: #000;
      

  }

  .u-msg-close:hover{
    opacity: .5;
  }
}