app/styles/login.scss
.form-signin {
max-width: 330px;
padding-top: 45px;
margin: 0 auto;
.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;
}
input {
border-bottom-right-radius: 0;
border-bottom-left-radius: 0;
border: 0px solid #000000;
border-bottom-width: 1px;
background-color: transparent;
&[type="text"] {
margin-bottom: -1px;
}
&[type="password"] {
margin-bottom: 10px;
}
}
}