Task 1.10 to 2.5

style.css

* { box-sizing: border-box; }

/*****navigation  bar*****/

.nav {
  display: inline-block;
  background-color: black;
  opacity: 0.8;
  filter: alpha(opacity=80); /* For IE8 and earlier */
  z-index: 1;
}

.nav ul li {
  background-color: black;
}

.nav ul li a {
  text-transform: uppercase;
  letter-spacing:  0.5em;
  color: white;
}

.nav a:hover {
  color: #0EBFE9;
  text-decoration: none;
  font-variant: bold;
  transition: color 600ms;
  -webkit-transition: color 600ms;
}

.nelantone {
  padding-top: 15px;
  position: absolute;
  text-transform: uppercase;
  letter-spacing: 0.5em;
}

.nelantone a {
  position: absolute;
  position: fixed;
  color: white;
  text-decoration: none;
  letter-spacing: 0.5em;
}

/**** index page ****/

.container {
  width: 100%;
  color: #000;
  position: relative;
}

body {
  position: relative;
  background-color: #fffeea;
  color: #34495e;
}

.sections {
  padding-top: 50px;
}

.container.index {
  width: 100%;
  margin: 0 auto;
  color: #000;
  display: block;
  position: absolute;
  margin-top: 200px;
  background-color: white;
  z-index: 1;
  opacity: 0.8;
    filter: alpha(opacity=80); /* For IE8 and earlier */
}

.container.title {
  width: 100%;
  margin: 0 auto;
  color: #000;
  display: block;
  position: absolute;
  text-align: center;
  margin-top: 70px;
  z-index: 1;
}

/**** About page ****/

.tonioImage {
  display: inline-block;
  float: left;
}

#about-me {
  clear: both;
  padding-top: 50px;
}

.intro p {
  font-size: 2em;
  font-style: italic;
}

.bg-about {
  width: 100%;
  height: 100%;
  background-image: url("http://nelantone.bitballoon.com/img/Peters_projection3.png");
  background-size: 100%;
  background-color: white;
  background-repeat: no-repeat;
  opacity: 1;
    filter: alpha(opacity=1); /* For IE8 and earlier */
}

.description {
  height: 100%;
  width: 100%;
  margin-left: 8%;
  padding: 0 20%;
}

.work_bg {
  height:100%;
  width:100%;
  background-attachment: fixed;
  margin:0 0 10px;
  background-image: url("http://nelantone.bitballoon.com/img/bln_about_bg.jpg");
  background-repeat: no-repeat;
  background-position: center;
  display: inline-block;
}

.tonioImage {
  margin: 20px;
}

/**** Contact page ****/

#name { text-transform: capitalize; }

.contact a:hover {
  color: black;
  text-decoration: none;
  font-variant: bold;
  transition: color 600ms;
  -webkit-transition: color 600ms;
 }

.contact-square {
  width: 400px;
  height: 250px;
  margin-left: 35%;
}

.all-content.contact {
  background-attachment: fixed;
  padding-top: 70px;
  padding-bottom: 30%;
  margin-top: 0px;
  width: 100%;
  height:100%;
  background-color: #e9e8e5;
  background-image: url("https://c2.staticflickr.com/6/5192/5899011068_65171b330b_o.jpg");
  background-size: cover;
  background-repeat: no-repeat;
}

#name,
#email,
.message-box {
  opacity: 0.7;
    filter: alpha(opacity=70); /* For IE8 and earlier */
}

.form-group {
  display: inline-block;
  position: absolute;
  float: left;
}

/**** FAQ & Learn-more page ****/
.container.faq {
  width: 100%;
}

h1.learn-more {
  text-align: left;
  margin-left:2%;
  display: inline-block;
}

.modal-button {
  float: right;
  padding: 15px;
}

#faq-section {
  margin-bottom: 40px;
}

#CV-Resume {
  height: 500px;
  width: 100%;
  padding: 5px;
}

/***** end sections and bottom *****/

#working_on_it {
  padding-top: 75px;
}

footer{
  display: block;
  margin: auto;
  width: 50%;
}

.end_bg {
  height:100%;
  width:100%;
  margin:0 0 10px;
  background-image: url("http://nelantone.bitballoon.com/img/albufer_bg.jpg");
  background-position: 50% 70%;
  background-color: black;
}

/*****Typography*****/

* { font-family: Futura, Helvetica, Arial, sans-serif; }

/*****Media medium screens*****/
@media (max-width: 990px) {

  /***index***/
  .container.index {
  position: relative;
  display: block;
  }

  .container.title {
    width: 70%;
    margin-right: 20%;
    margin-left: 15%;
  }

  .container.title h1 {
    margin: 0 auto;
    font-size: 25px;
  }

  .all-content {
  padding-top: 50px;
  }

  .all-content.contact {
    padding-top: 0px;
    padding-bottom: 100%;
  }

  #name h3{
    font-size: 15px;
  }

  /***contact***/
  .container.contact {
    margin: auto auto auto;
  }

  .contact-square h1{
    font-size: 20px;
  }

  .contact-square {
    background-color: white;
    padding-left: 20px;
    z-index: 1;
    opacity: 0.8;
    filter: alpha(opacity=80); /* For IE8 and earlier */
  }

  /***work***/
  .work_bg {
  background-repeat: no-repeat;
  }

  /***navigator***/
  .navbar-nav.navbar-right {
    padding-left: 80%;
  }

  .form-group {
    padding-left: 200px;
  }

  /*** end of section ***/
  footer{
  display: block;
  margin: 0;
  }
}

/*****Media phone screens*****/
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {

  /***font sizes***/
  * { font-size: 13px; }

  h1 { font-size: 15px; }

  h2 { font-size: 14px; }

  h3 { font-size: 13px; }

  h4 { font-size: 13px; }

  h5 { font-size: 13px; }

  /***Navigation bar***/
  .navbar-nav.navbar-right {
    padding-left: 1%;
  }

  .navbar-toggle {
    float: inherit;
    margin-left: 5px;
  }

  .navbar-nav {
    width: 100%;
    margin-left: -15px;
  }

  .nav {
  opacity: 1;
  filter: alpha(opacity=100); /* For IE8 and earlier */
  }

  /***index***/
  .all-content {
    padding-top: 800px;
    }

  /*** end and bottom section***/
  iframe {
    width: 100%;
    height: 100%;
  }
}