#map{
    width:95vw;
    height:45vh;
    margin:auto;/*水平居中*/
}
#ppv_container{
    width:100%;
    height:100%;
}
#ppv{
    position:relative;/*作为内部子元素的定位基准*/
    width:100%;
    height:100%;
    background: url("../StreetMap/icon/error-imaj.jpg") no-repeat;
    background-size: 100% 100%;
    /* 子水平居中 flex layout*/
    display: -webkit-flex; /* Safari */
    display: flex;
    justify-content:center;
}
#history_container{
    position:absolute;/*在ppv内部定位*/
    width:60%;
    height:40px;
    /* 子垂直居中 flex layout*/
    display: -webkit-flex; /* Safari */
    display: flex;
    justify-content:center;
    align-items: center;
    left: 20%;
    bottom: 18px;
}
.ppv_toolbar{
    position:relative;/*在ppv内部定位*/
    height: 62px;
    background-color: rgba(0,0,0,0.7);
    border: 1px solid rgba(165, 175, 181, 0.5);
    border-radius: 6px;
    padding-top: 7px;
}
.ppv_button{
    background-color: transparent;
    height: 50px;
    width: 50px;
    margin-left: 10px;
    float: left;
}
.ppv_button:hover{
    cursor: pointer;
}
.ppv_splite{
    display: block;
    float: left;
    background: url("../images/assets/panoram/splite.png") no-repeat;
    height: 40px;
    width: 2px;
}
.ppv_button_special{
    display: block;
    margin-left: 10px;
    margin-right:10px;
}
#play{
    display: block;
    background: url("../images/assets/panoram/play.png") no-repeat;
    background-position: center;
}
#play.active{
    background: url("../images/assets/panoram/pause.png") no-repeat;
    background-position: center;
}
#measurePoint{
    display: block;
    background: url("../images/assets/panoram/location.png") no-repeat;
}
#measurePoint:hover{
    background: url("../images/assets/panoram/location_hover.png") no-repeat;
}
#measureLength{
    display: block;
    background: url("../images/assets/panoram/hdis.png") no-repeat;
}
#measureLength:hover{
    background: url("../images/assets/panoram/hdis_hover.png") no-repeat;
}
#measureArea{
    display: block;
    background: url("../images/assets/panoram/area.png") no-repeat;
}
#measureArea:hover{
    background: url("../images/assets/panoram/area_hover.png") no-repeat;
}
#measureZ{
    display: block;
    background: url("../images/assets/panoram/vdis.png") no-repeat;
}
#measureZ:hover{
    background: url("../images/assets/panoram/vdis_hover.png") no-repeat;
}
#measureAngle{
    display: block;
    background: url("../images/assets/panoram/angle.png") no-repeat;
}
#measureAngle:hover{
    background: url("../images/assets/panoram/angle_hover.png") no-repeat;
}
#measureSlope{
    display: block;
    background: url("../images/assets/panoram/slope.png") no-repeat;
}
#measureSlope:hover{
    background: url("../images/assets/panoram/slope_hover.png") no-repeat;
}
#createPoint{
    display: block;
    background: url("../images/assets/panoram/creatPoint.png") no-repeat;
}
#createPoint:hover{
    background: url("../images/assets/panoram/creatPoint_hover.png") no-repeat;
}
#createPolyline{
    display: block;
    background: url("../images/assets/panoram/creatline.png") no-repeat;
}
#createPolyline:hover{
    background: url("../images/assets/panoram/creatLine_hover.png") no-repeat;
}
#createPolygon{
    display: block;
    background: url("../images/assets/panoram/creatPolygon.png") no-repeat;
}
#createPolygon:hover{
    background: url("../images/assets/panoram/creatPolygon_hover.png") no-repeat;
}
#pick{
    display: block;
    background: url("../StreetMap/icon/pick.png") no-repeat;
}
#remove{
    display: block;
    background: url("../StreetMap/icon/remove.png") no-repeat;
}
#time{
    display: block;
    background: url("../images/assets/panoram/time.png") no-repeat;
}
#time:hover{
    background: url("../images/assets/panoram/time_hover.png") no-repeat;
}
#chooseRoad{
    display: block;
    background: url("../images/assets/panoram/changeRoad.png") no-repeat;
}
#chooseRoad:hover{
    background: url("../images/assets/panoram/changeRoad_hover.png") no-repeat;
}
.history_item{
    height:128px;
    margin:10px;
}
.history_item:hover{
    border:1px solid #00F;
}
#lrs{
}
.lrs_item{
    margin:5px;
}