span.imgOnHeader {
    width: 25px;
    height: 25px;
    display: inline-block;
    float: left;
    border-radius: 30px;
    margin-right: 10px;
    overflow: hidden;
    position: relative;
    top: -3px;
  }
  span.imgOnHeader>img {
    width: 100%;
    height: 100%;
  }
  span.userOns {
    display: inline-block;
    float: left;
    margin-right: 15px;
  }
  .userOns{
  	cursor: pointer;
  }

.el-dropdown-menu {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    margin: 5px 0;
    background-color: #FFF;
    border: 1px solid #EBEEF5;
    border-radius: 4px;
    box-shadow: 0 2px 12px 0 rgba(0,0,0,.1);
    max-height: 400px;

}
.el-dropdown-menu__item {
    list-style: none;
    line-height: 36px;
    padding: 0 20px;
    margin: 0;
    font-size: 14px;
    color: #606266;
    cursor: pointer;
    outline: 0;
    
}

.el-dropdown-menu__item {
    list-style: none;
    line-height: 36px;
    padding: 0 20px;
    margin: 0;
    font-size: 14px;
    color: #606266;
    cursor: pointer;
    outline: 0;
}
.el-popper .popper__arrow, .el-popper .popper__arrow::after {
    position: absolute;
    display: block;
    width: 0;
    height: 0;
    border-color: transparent;
    border-style: solid;
}
.el-popper .popper__arrow {
    border-width: 6px;
    -webkit-filter: drop-shadow(0 2px 12px rgba(0, 0, 0, .03));
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, .03));
}
.el-dropdown-menu__item:hover {
    background-color: #ecf5ff;
    color: #66b1ff;
}
.el-dropdown-menu__item:focus, .el-dropdown-menu__item:not(.is-disabled):hover {
    background-color: #ecf5ff;
    color: #66b1ff;
}