html,
body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

.form-signin {
  width: 100%;
  max-width: 400px;
  padding: 15px;
  margin: auto;
}

.form-signin .checkbox {
  font-weight: 400;
}

.form-signin .form-floating:focus-within {
  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;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}
.mt {
    margin-top: 10px;
} 
.btn-black {
    background-color: #000;
    color: #fff;
}
:hover.btn-black {
    background-color: #333;
    color: #ddd;
}
.btn-orange {
    background-color: #fcdc19;
    color: #000;
}
:hover.btn-orange {
    background-color: #333;
    color: #fff;
}

.btn-fb {
    background-color: #4267b2;
    color: #fff;
}
:hover.btn-fb {
    background-color: #305296;
    color: #fff;
}
.btn-go {
    background-color: #ff0000;
    color: #fff;
}
:hover.btn-go {
    background-color: #cf0404;
    color: #fff;
}