.about-sizing {
  box-sizing: inherit;
  margin: 0.75em 0;
  padding: 1 1em;
  list-style: none;
}

.buttonFeedback {
  padding-left:10px;
}

.logo {
  height:70px;
}

.icon {
  height: 110px;
  padding: 20px;
  opacity: 0.8;
}
.icon:hover {
  opacity:1;
  padding: 5px;
}

.title-image {
  position: relative;
  padding-right: 20px;
  box-sizing: inherit;
  height:100%;
  width: 100%;
}

.title-hr {
  margin-left: 0;;
  border-color: grey;
  border-width: 0;
  width: 13%;
  height:2px;
  background-color: grey;
}

.triangle:before { 
  content: "";
  border-color: transparent #64a19d;
  border-style: solid;
  border-width: 0.35em 0 0.35em 0.45em;
  display: block;
  height: 0;
  width: 0;
  left: -1em;
  top: 0.9em;
  position: relative;
}


.vl {
  border-left: 3px solid black;
  height: 300px;
  border-color: grey;
}
.resume {
  padding: 50px;
}

/* masthead circle */
.loading {
  width:350px;
  height:350px;
  box-sizing: border-box;
  border-radius: 50%;
  border-top: 10px solid #e75c3c;
  position: relative;
  animation: a1 3s linear infinite;
}

.loading::before,.loading::after {
  content:'';
  width:350px;
  height:350px;
  position: absolute;
  left: 0;
  top: -10px;
  box-sizing: border-box;
  border-radius: 50%;
}
.loading span {
  color:#fff;
  position: absolute;
  text-align: center;
  width:350px;
  height:350px;
  line-height:50px;
  padding-top:110px;
  animation: a2 3s linear infinite;
  font-family: 'Kaushan Script', cursive;
  font-size: 1.5rem;
}

.loading::before {
  border-top: 10px solid #e67e22;
  transform: rotate(120deg);
}

.loading::after {
  border-top: 10px solid #3498db;
  transform: rotate(240deg);
};

.loading span {
  color:#fff;
  position: absolute;
  text-align: center;
  animation: a2 3s linear infinite;
}

.content-desktop {
  display: none;
}

@media screen and (min-width: 600px) {
  .content-desktop {
      clear: both;
      display: block;
  }
}
@keyframes a1 {
  to{
    transform: rotate(360deg);
  }
}

@keyframes a2 {
  to{
    transform: rotate(-360deg);
  }
}

/* testimonials */
.testimonials-img {
position: relative;
}

.testimonials-image {
  border-radius: 2%;
  width:100%;
  height:auto;
  height: 350px;
}
@media (max-width: 768px) {
  .testimonials-img {
    position: relative;
    }

  .testimonials-image {
    border-radius: 2%;
    width:100%;
    height: auto;
    height: 150px;
  }
}
.container-fluid {
  padding: 5% 12% ;
}
.practical {
  background-image: url(images/practical1.jpg)!important;
  z-index: -1;
}

.title {
  color: #64a19d;
}

.icon-bar {
  position: fixed;
  top: 80%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}

/* Style the icon bar links */
.icon-bar a {
  display: block;
  text-align: center;
  padding: 10px;
  transition: all 0.3s ease;
  color: white;
  font-size: 15px;
  border-radius: 100%;
  margin: 5px;
  background: #64a19d;
}

/* Style the social media icons with color, bar left, bar right*/
.icon-bar a:hover {
  background-color: grey;
}

.bounce:hover { 
  animation: bounce 2s linear; }

@keyframes bounce {
  20%,50%,80%,to{
      transform: translateY(0);
  }
  40%{
      transform: translateY(-30px);
  }
  70%{
      transform: translateY(-15px);
  }
  90%{
      transform: translateY(-4px);
  }
}

.vertical-bar {
  writing-mode: vertical-rl;
  text-orientation: sideways-right;
  color:#64a19d;
  font-size: 15px;
}
.vertical-left {
  writing-mode: vertical-rl;
  border-left: 3px solid #64a19d;
  height: 100px;
  vertical-align: center;
  margin-left:22px;
  bottom: 0;
}

.email-bar {
  position: fixed;
  right:0;
  top:80%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}
.email-bar a {
  font-size: 15px;
  writing-mode: vertical-rl;
  display: block;
  text-align: center;
  color: #64a19d;
}

.vertical-right {
  writing-mode: vertical-rl;
  border-left: 3px solid #64a19d;
  height: 200px;
  padding:10px;
  margin:8px
}

/* Portfolio */

.portfolio-item {
  display: block;
  overflow: hidden;
  margin: auto auto 1rem;
  position: relative;
}

.portfolio-item .caption {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  height: 100%;
  width: 100%;
  background-color: rgba(33, 37, 41, 0.2);
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
}

.portfolio-item .caption .caption-content {
  color: #fff;
  margin: auto 2rem 2rem;
  
}

.portfolio-item .caption .caption-content h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
}

.portfolio-item .caption .caption-content p {
  font-weight: 200;
  font-size: 1.2rem;
}

@media (min-width: 992px) {
  .portfolio-item {
    max-width: none;
    margin: 0;
  }

  .portfolio-item .caption {
    -webkit-transition: -webkit-clip-path 0.25s ease-out, background-color 0.7s;
    -webkit-clip-path: inset(0px);
    clip-path: inset(0px);
  }
  
  .portfolio-item .caption .caption-content {
    -webkit-transition: opacity 0.25s;
    transition: opacity 0.25s;
    margin-left: 3rem;
    margin-right: 2rem;
    margin-bottom: 2rem;
  }

  .portfolio-item img {
    -webkit-transition: -webkit-clip-path 0.25s ease-out;
    -webkit-clip-path: inset(-1px);
    clip-path: inset(-1px);
  }

  .portfolio-item:hover img {
    -webkit-clip-path: inset(2rem);
    clip-path: inset(2rem);
  }

  .portfolio-item:hover .caption {
    background-color: rgba(29, 128, 159, 0.9);
    opacity: 0.3;
    -webkit-clip-path: inset(2rem);
    clip-path: inset(2rem);
  }
}

/* Education and Experience*/

.container ul ul {
  display: none;
}

.container li {
  list-style-type: none;
}

.container li.active ul {
  display: block;
}

.tab {
  margin-left: 4.5em;
}
.scroll {
  color:#64a19d;
}

/* nav button */

.nav-button {
  display: block;
  padding: 0.5rem 1rem;
  margin: 1.5rem 1rem;
  border: 1px solid #64a19d;
}

.nav-button:hover, .nav-button:focus {
  text-decoration: none;
}

.nav-button.disabled {
  color: #6c757d;
  pointer-events: none;
  cursor: default;
}


/* rotate images */
.contain {
  margin: 20px;
}

@media (max-width: 600px) {
.contain {
  margin:0px;
}
}

.element {
  display: inline-block;
  background-color: none;
  height: 80px;
  width: 80px;
  padding: 1px;
  margin-left:  15px;
  margin-right: 15px;
  -webkit-animation: roll 3s infinite;
  -webkit-transform: rotate(30deg);
  opacity: 0.5; 
}

.element:hover {
  opacity:1;
}

.rotate {
  height:100px;
  width: 100px;
}


@keyframes roll {
  0% {
    -webkit-transform:rotate(0);
    transform: rotate(0);
  }
  100% {
  -webkit-transform:rotate(360deg);
    transform:rotate(360deg);
  }
}


#resume-section {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 75%, #000000 100%), url("../images/bg-signup.jpg");
  color: #64a19d;
  padding: 20px;
}
.modal-fade {
  color: black;
}


/* Flip box image */

.flip-box {
  background-color: transparent;
  width: 100%;
  height: 800px;
  perspective: 1000px;
}

/* This container is needed to position the front and back side */
.flip-box-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}



/* Do an horizontal flip when you move the mouse over the flip box container */
.flip-box:hover .flip-box-inner {
  transform: rotateY(180deg);
}

/* Position the front and back side */
.flip-box-front, .flip-box-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden; /* Safari */
  backface-visibility: hidden;
}

/* Style the back side */
.flip-box-back {
  transform: rotateY(180deg);
}


/* footer */
pre {
  color:#64a19d;
}