index_css.scss

@mixin box-values($height, $width, $background, $margin, $padding) {
  height: $height;
  width: $width;
  background: $background;
  margin: $margin;
  padding: $padding;
}
@mixin margin-padding($margin, $padding) {
  display: inline;
  margin: $margin;
  padding: $padding;
  text-align: center;
}
* {
  padding: 0;
  margin: 0;
}
body {
  width: auto;
  height: auto;
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-decoration: none;
  font: 100%;
  font-weight: 200;
}
.nav {
  @include box-values(15px, 100%, #FFF, 0px 50px 10px 0, 10px);
  font-weight: 700;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-decoration: none;
}
ul {
  @include margin-padding(10px 250px 10px 0, 0);
  li {
    @include margin-padding(10px 0 10px 0, 15px);
  }
}
.nav ul :hover {
  background: #E6E6E6;
  width: 30%;
}
.body-content {
  @include box-values(580px, 1500px, #FFF, 0, 0);
  text-align: center;
}
.upper-body {
  padding: 100px 0 40px 0;
  background: #563d7c;
  a {
    width: 20%;
    font-size: 25px;
    color : white;
    line-height: 14px;
    border: 1px solid #FFFFFF;
    border-radius: 5px 5px 5px 5px;
    display: block;
    margin: 10px auto;
    padding: 15px 30px 15px 30px;
    &:hover {
      color: #563d7c;
      background: #fff;
    }
  }
}
a:link{
  text-decoration: none;
}
p {
  font-size: 30px;
  margin: 45px auto 35px auto;
}
.box-logo {
  width: 144px;
  height: 144px;
  font-size: 108px;
  line-height: 140px;
  color: #FFF;
  border: 1px solid #FFFFFF;
  border-radius: 15%;
  display: block;
  margin:0 auto;
}
.description-logo {
  width: 60%;
  font-size: 30px;
  color: #FFF;
  font-wigth: normal;
  text-align: center;
}
.bootstrap-version {
  font-size: 15px;
  color: #9783b9;
}
.middle-body {
  padding: 50px 0 0 0;
}
.design-for-everyone {
  margin: 20px auto 0 5px;
  font-size: 40px;
}
.body-description {
  max-width: 80%;
  margin:0 auto 0 auto;
}
.bottom-line {
  width: 7%;
  border-bottom: 1px solid #CCCCCC;
}
.row {
  display: table;
  padding: auto 20px 0 20px;
  width: 90%;
  margin: auto 10px 70px 80px;
  .column {
     display: table-cell;
     padding: 0 15px 0 15px;
     img {
       display: block;
       max-width: 90%;
       padding: 0 0 0 0;
       margin: 0 0 20px 0;
     }
     .desc {
       font-size: 20px;
       text-align: center;
       max-width: 75%;
       font-weight: normal;
       margin: 10px 0 0 0;
       a {
         color: #337ab7;
         text-decoration: none;
         background-color: transparent;
       }
     }
     h3 {
       font-size: 24px;
     }
  }
}
.explore-the-expo {
  a {
    width: 15%;
    font-size: 18px;
    color : #563d7c;
    line-height: 14px;
    border: 1px solid #563d7c;
    border-radius: 5px 5px 5px 5px;
    display: block;
    margin: 10px auto 80px;
    padding: 15px 0 15px 0;
    &:hover {
      color: #fff;
      background: #563d7c;
    }
  }
  .full-line {
    width: 100%;
    border-bottom: 1px solid #CCCCCC;
  }
}
.body-description {
  a {
    color: #337ab7;
    text-decoration: none;
    background-color: transparent;
  }
  width: 70%;
  font-size: 21px;
}
.image-row {
  display: table;
  width: 70%;
  padding: 0 auto 0 auto;
  margin: 0 auto 0 auto;
  .column {
    display: table-cell;
    a {
      img {
        width: 99%;
      }
    }
  }
}
.footer {
  margin: 0 auto 50px auto;
  padding: auto;
  ul {
    margin: 20px 0 20px 0;
    padding: 0 0 0 0;
  }
  .reference-link {
    margin: 20px 0 20px 0;
    p {
      margin: 0 0 0 0;
      font-size: 15px;
      color: #767676;
      font-weight: 200;
      a {
        color: #337ab7;
      }
    }
  }
  .version {
    margin: 0 auto 0 auto;
    width: 70%;
    ul {
      li a{
        color: #337ab7;
        font-size: 14px;
      }
      li {
        color: #767676;
        font-size: 14px;
        padding: 0 -10px 0 -10px;
        padding: 0 -10px 0 -10px;
      }
    }
  }
}