.system_auth_form_11072015{
    position: relative;
}
.system_auth_form_11072015 a{
    color: #fff;
    text-decoration: none;
}
.system_auth_form_11072015 .signin
{
    background: url("pic1g.png") left -30px no-repeat;
    padding-left: 20px;
    margin-left: 20px;
}
.system_auth_form_11072015 .signin:hover
{
    background-position: left 20px;
    color: #00961c;
    text-decoration: none;
}
.system_auth_form_11072015 .signup,.system_auth_form_11072015 .username
{
    margin-left: 10px;
}
.system_auth_form_11072015 .signup:hover,.system_auth_form_11072015 .username:hover
{
    background-position: left 20px;
    color: #00961c;
    text-decoration: none;
}

.system_auth_form_11072015 .logout
{
    background: url("pic2g.png") left -30px no-repeat;
    padding-left: 20px;
    margin-left: 20px;
}
.system_auth_form_11072015 .logout:hover
{
    background-position: left 20px;
    color: #00961c;
    text-decoration: none;
}