        
       body
{
    overflow:auto;
    background-color: #1b1b1b;
    padding-top: 40px;
}
.form-signin {
    max-width: 280px;
    padding: 15px;
    margin:200px;
    margin-top:80px;
    margin-left: 130px;
  }

.input-group-addon
{
    background-color: rgb(50, 118, 177);
    border-color: rgb(40, 94, 142);
    color: rgb(255, 255, 255);
}

.form-signup input[type="text"],.form-signup input[type="password"] { border: 1px solid rgb(50, 118, 177); }
.fullscreen_bg {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat:repeat;
  }
  
  table {
    width: 100%;
    display:block;
}
thead {
    display: inline-table;
    width: 100%;
    height: 30px;
}
tbody {
    height: 150px;
    display: inline-block;
    width: 100%;
    overflow: auto;
}
      
      