html, body, div, span, applet, object, iframe, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  vertical-align: baseline;
  text-rendering: optimizeLegibility !important;
  -webkit-font-smoothing: antialiased !important;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

body {
  width: 100%;
  margin: 80px 0;
  font-family: "Roboto", Arial, Helvetica, sans-serif;
  color: #555;
  font-size: 1rem;
  line-height: 1.5;
}

h1 {
  width: 600px;
  color: #000;
  font-size: 1.5rem;
  font-weight: 400;
}

h2 {
  font-size: 1.25rem;
  font-weight: 400;
}

a {
  color: #555;
  text-decoration: none;
  border-bottom: 1px solid #ebebeb;
  transition: all .2s ease-in-out !important;
}
a:hover {
  border-bottom: 1px solid #9b9b9b;
}

header, main, footer {
  max-width: 960px;
  margin: 0 auto;
}

.float {
  position: fixed;
  width: 90px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  text-align: center;
}

img {
  max-width: 100%;
  filter: grayscale(100%);
}

.row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  margin: 60px 0;
}

.column {
  margin-right: 40px;
}
.column:last-of-type {
  margin-right: 0;
}

header .row, .row .clients, .contact-bar {
  align-items: center;
}

.intro {
  align-items: flex-end;
}

.intro {
  height: 300px;
}

hr {
  width: 90px;
  border: 1px solid #f8f8f8;
  margin: 0 auto 0 0;
}

.contact-bar {
  border-radius: 8px;
  padding: 7px 7px 7px 15px;
  background-color: #f5f5f5;
  color: #000;
  font-size: 0.875rem;
}

a.email-button, a.email {
  color: white;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  border: none;
  z-index: 2;
}
a.email-button:hover, a.email:hover {
  opacity: 0.8;
}

a.email-button {
  border-radius: 4px;
  padding: 11px;
  background-color: #000;
}
a.email-button img {
  vertical-align: middle;
}

a.email {
  border-radius: 4px;
  padding: 11px 13px 12px;
  background-color: #000000;
}

.thumbnails a {
  border: none;
  z-index: 2;
}
.thumbnails a:hover {
  opacity: 0.8;
}
.thumbnails a img {
  border-radius: 8px;
  width: 293.33333px;
  height: auto;
}

.thumbnails, .testimonials {
  margin-bottom: 80px;
}

.question {
  color: #000;
  font-weight: 400;
  margin-bottom: 20px;
}

mark {
  border-radius: 4px;
  color: #555;
  background: #f8f8f8;
}

.author {
  display: flex;
  align-items: center;
  color: #9b9b9b;
  margin-top: 20px;
}
.author img {
  margin-right: 10px;
  border-radius: 100%;
}

footer, footer a {
  color: #9b9b9b;
}

/* Responsive styling adjustments */

@media screen and (max-width: 850px) {
  .row {
    margin: 20px 0;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .intro {
    flex-direction: column;
    align-items: center;
    height: auto;
  }

  .intro img {
    height: 200px;
    margin-bottom: 20px;
  }

  #introText {
    width: 100%;
    text-align: center;
    margin-top: 20px;
    font-size: 1.1rem;
  }

  body {
    margin: 40px 0;
  }

  header, main, footer {
    max-width: 85%;
  }

  h1 {
    font-size: 1.375rem;
    width: 100%;
  }

  .thumbnails a {
    width: 30%;
  }
  .thumbnails a img {
    width: 100%;
  }

  .contact-bar {
    padding: 30px;
    text-align: center;
    justify-content: space-around;
  }
  .contact-bar .message {
    width: 100%;
  }
  .contact-bar a.email {
    margin-top: 20px;
  }
}

@media screen and (max-width: 550px) {
  .presentation {
    padding-top: 20px;
  }
}

@media screen and (max-width: 500px) {

  .clients {
    width: 300px;
  }

  .thumbnails a {
    width: 100%;
  }
}

@media screen and (max-width: 375px) {
  .intro img {
    height: 150px;
  }

  #introText h1 {
    font-size: 1.2rem;
  }

  .intro {
    padding: 20px;
  }

  .column {
    margin: 10px 0;
  }

  .clients {
    width: 100px;
  }
}