@charset "utf-8";
@import url('https://fonts.googleapis.com/css?family=Montserrat');

* {
  padding: 0;
  margin: 0;
  border: 0;
  box-sizing: border-box;
  list-style: none;
  font-family: 'Open Sans',sans-serif, arial, helvetica;
}


html{
  background-color: gray;
}

body{
  width: 360px;
  min-height: 640px;
  background-color: #18BC9C;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-flow: column;
      flex-flow: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

header nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color:#ffa500;
    
    
}



header nav ul li {
    padding: 0 7.6rem 0 0;
    background-color: #ffa500;
    background-size: 100%;
    display: inline;
    
    
}

.logo {
   display: center;
    margin-top: 1.5rem;
    }

.formulario{
   display: center;
    font-size: 95%;
    color:#ffffff;
    text-align:left;
    
            
    }

.formulario input {
    margin-left: auto;
    margin-right: auto;
        
    }

.boton-principal{
    width: 80%; 
    background-color: #ffa500;
    margin-top: 1rem;
    padding: 0.5rem 4rem;
    color: #ffffff;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    
}

nav ul li {
    width: 90%; 
    background-color: #ffa500;
    margin-top: 1rem;
    padding: 0.5rem 4rem;
    color: #ffffff;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    
    
}

nav ul li a {
     
    color: #efefef;
    font-weight: 600;
    font-size: 80%;
    margin-top: 1rem ;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none
    
}

li{     
    color: #efefef;
    font-size: 90%;
    margin-top: 0.5rem ;
    text-decoration: none
        
   }

.password{
  background-color: #efefef;
  outline: 1px;
  border-bottom: 1px solid gray;
  width: 15rem;
  margin: 0.5rem;
}

main{
  text-align:justify;
  width: 300px;
  
}

main p{
  color:#ffffff;
  font-size: 95%;
  padding-top: 0.5rem;
  text-align:left;
  width: 280px;
  margin-top: 2rem;
  margin-bottom: 2rem;
  font-weight: 700;
  
}

.parrafos{
  color:#ffffff;
  font-size: 95%;
  padding-top: 0.5rem;
  text-align:left;
  width: 280px;
  margin-top: 2rem;
  margin-bottom: 2rem;
  
  
}

span{
  font-size: 1rem;
  font-weight: 600;
  color: #3299bb;
}

footer{
    margin-top: 3rem;
  padding-top: 0.5rem;
  font-kerning: auto
  text-align: justify;
  
}

.foot_info{
	padding: 35px 25px;
	background-color: #233140;
	color: white;
	font-size: 10px;
}

<!-- bichitos -->

p.small {
  font-size: 16px;
}
a,
a:hover,
a:focus,
a:active,
a.active {
  color: #18BC9C;
  outline: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-transform: uppercase;
  font-weight: 700;
    font-size: 150%;
    margin-top: 1.5rem;
    color: #ffffff;
    text-align: left;

}


@media (max-width: 767px) {
  section {
    padding: 75px 0;
  }
  section.first {
    padding-top: 75px;
  }
}
#portfolio .portfolio-item {
  margin: 0 0 15px;
  right: 0;
}
#portfolio .portfolio-item .portfolio-link {
  display: block;
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}
#portfolio .portfolio-item .portfolio-link .caption {
  background: rgba(24, 188, 156, 0.9);
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: all ease 0.5s;
  -webkit-transition: all ease 0.5s;
  -moz-transition: all ease 0.5s;
}
#portfolio .portfolio-item .portfolio-link .caption:hover {
  opacity: 1;
}
#portfolio .portfolio-item .portfolio-link .caption .caption-content {
  position: absolute;
  width: 100%;
  height: 20px;
  font-size: 20px;
  text-align: center;
  top: 50%;
  margin-top: -12px;
  color: white;
}
#portfolio .portfolio-item .portfolio-link .caption .caption-content i {
  margin-top: -12px;
}
#portfolio .portfolio-item .portfolio-link .caption .caption-content h3,
#portfolio .portfolio-item .portfolio-link .caption .caption-content h4 {
  margin: 0;
}
#portfolio * {
  z-index: 2;
}