showdoc/Public/css/login.css

body {
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

.form-signin {
  max-width: 300px;
  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);
}
.form-signin .form-signin-heading,
.form-signin .checkbox {
  margin-bottom: 10px;
}
.form-signin input[type="text"],
.form-signin input[type="password"] {
  font-size: 16px;
  height: auto;
  margin-bottom: 15px;
  padding: 7px 9px;
}

.container{
  margin-top: 5%;
}

.card{
    width: 330px;
    position  : absolute;
    top       : 50%;
    left      : 50%;
    transform : translate(-50%,-50%);
    padding-top: 30px;
    padding-left: 45px;
    padding-right: 45px;
    padding-bottom: 30px;
    background-color: #fff;
    box-sizing: border-box;
}

.heading{
    text-align: center;
    padding-bottom: 20px