body {  
  background: url('https://alistra-eshop.cz/img/web/default/bg/5.png');  
}

.panel.panel-default.blue {
    border-radius:0;
    border-top:0;
    border-left:0;
    border-right:0;
    color:#fff;
    background:#428bca;
}

.panel.panel-default.blue a,
.panel.panel-default.blue a:link,
.panel.panel-default.blue a:visited {
    color:#fff;
}

.form-signin {
  max-width: 330px;
  padding: 15px;
  margin: 0 auto;
}
.form-signin .form-signin-heading,
.form-signin .checkbox {
  margin-bottom: 10px;
}
.form-signin .checkbox {
  font-weight: normal;
}
.form-signin .form-control {
  position: relative;
  height: auto;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
  padding: 10px;
  font-size: 16px;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;  
}

.form-signin input[type="password"] {
  margin-bottom: 10px;
  margin-top:5px;  
}