.notices-common-block{
    position: fixed;
    z-index: 200;
    width: 100%;
}
.notices-common-block.block-top{
    top:0px;
}
.notices-common-block.block-bottom{
    bottom:0px;
}
.notices-common-block > .alert-global > .content > .close{
    position: absolute;
    line-height: 10px;
    top: 50%;
    transform: translateY(-50%);
    right: 15px;
    color: #fff;
    opacity: 1;
    font-size: 30px; 
    outline:none;
}