body {
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #eee;
}

.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;
  font-size: 16px;
  height: auto;
  padding: 10px;
  width: 100%;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="text"] {
  margin-bottom: -1px;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.form-signin {
  max-width: 450px;
  padding: 19px 29px 29px;
  margin: 0 auto 20px;
  background-color: #fff;
  border: 1px solid #e5e5e5;
  -webkit-border-radius: 5px;
     -moz-border-radius: 5px;
          border-radius: 5px;
  -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.05);
     -moz-box-shadow: 0 1px 2px rgba(0,0,0,.05);
          box-shadow: 0 1px 2px rgba(0,0,0,.05);
}

#btnEntrar{
    padding: 9px;
}