html,body {
  font-family: 'Open Sans', serif;
  font-size: 14px;
  font-weight: 300;

}
.hero.is-success {
/*background: #f2f7fa;
  background-color:#d88c5f;
  background-image:linear-gradient(to bottom, transparent, rgba(0,0,0,.1));
*/background: url(../images/engenheiros.jpg);
  background-size: cover; 
  background-position: center;
  font-family: sans-serif;
}
.hero .nav, .hero.is-success .nav {
    -webkit-box-shadow: none;
    box-shadow: none;
    width: 320px;
    height: 420px;
    background: #000;
    color: #fff;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%,-50%);
    box-sizing: border-box;
    padding: 70px 30px;
}
.loginbox{
    width: 320px;
    height: 420px;
    background: #0000;
    color: #fff;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%,-50%);
    box-sizing: border-box;
    padding: 70px 30px;
}

.avatar{
    width: 100px;
    height: 100px;
    border-radius: 50%;
    position: absolute;
    top: -50px;
    left: calc(50% - 50px);
}
input {
  font-weight: 300;
}
p {
  font-weight: 700;
}