body{
    background: radial-gradient(circle at center center,rgba(20,33,39,0) 0%,rgba(20,33,39,0) 48%,#142127 85%,#142127 100%) repeat scroll 0 0%,transparent url(../images/Blacklogintexture.jpg) repeat scroll 0 0;
    text-align: center;
}
a{
    color: white;
    text-decoration: none;
}
a:hover{
    color: #F0C514;
}
.logo_header{
    margin: 0 auto;
    width: 320px;
    height: 210px;
    background: url(../images/IBLogo-fa-ir.png);
}
.row{
    margin: 50px 0;
}