body {
  margin: 0;
  padding: 60px 0;
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  line-height: 24px;
  color: #6b6e80;
  background: #fff;
  scrollbar-face-color: #2b2b2b;
}
a {
  color: #2b2b2b;
  text-decoration: none;
  -webkit-transition: all 0.1s linear;
  -moz-transition: all 0.1s linear;
  -ms-transition: all 0.1s linear;
  -o-transition: all 0.1s linear;
  transition: all 0.1s linear;
}
a:hover {
  color: #37456e;
  text-decoration: none;
  -webkit-transition: all 0.1s linear;
  -moz-transition: all 0.1s linear;
  -ms-transition: all 0.1s linear;
  -o-transition: all 0.1s linear;
  transition: all 0.1s linear;
}
.button{
  display: inline-block;
  padding: 18px 32px;
  font-size: 14px;
  text-transform: uppercase;
  background-color: transparent;
  border: 3px solid #2b2b2b;
  color: #2b2b2b;
}
.button:hover,
.button:focus,
.button:active {
  color: #fff;
  background-color: #2b2b2b;
  border-color: #2b2b2b;
}


/* site-header */
.site-header{
  display: block;
  max-width: 80%;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 100px;
  text-align: center;
}
.site-header h1{
  margin-bottom: 60px;
  font-size: 52px;
  line-height: 58px;
  color: #222;
}
.site-header h1 span {
  color: #555;
  display: block;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 1px;
  line-height: 18px;
  margin-top: 20px;
  text-transform: uppercase;
}
.site-header h2{
  margin-top: 60px;
  color: #222;
}

/* site-main */
.site-main .demo-item {
  position: relative;
}
.site-main .demo-item ul {
  padding: 0;
  margin: 0;
  text-align: center;
  font-size: 0;
}
.site-main .demo-item ul li {
  position: relative;
  display: inline-block;
  width: 33.3333333%;
  padding: 40px;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
     -o-box-sizing: border-box;
      box-sizing: border-box;
  background-color: #eee;
}
.site-main .demo-item ul li .item-description{
  display: block;
  padding: 10px;
  text-align: center;
  width: 100%;
}
.site-main .demo-item ul li .item-description h3{
  margin: 0;
  padding: 0;
  font-size: 16px;
  letter-spacing: 1px;
  color: #2b2b2b;
}
.site-main .demo-item ul li .item-description p{
  padding: 0;
  font-size: 13px;
  color: #999;
}
.site-main .demo-item ul li .item-new{
  position: absolute;
  left: 20px;
  top: 15px;
  z-index: 10;
  width: 50px;
  height: 50px;
  font-size: 12px;
  line-height: 50px;
  text-align: center;
  text-transform: uppercase;
  border-radius: 50%;
  background-color: #5065a1;
  color: #fff;
}
.site-main .demo-item ul li .btn-view{
  display: inline-block;
  position: absolute;
  left: 50%;
  top: 40%;
  padding: 10px 35px;
  font-size: 12px;
  text-transform: uppercase;
  text-align: center;
  letter-spacing: 2px;
  color: #fff;
  background-color: #2b2b2b;
  opacity: 0;
}
.site-main .demo-item ul li:hover .btn-view{
  opacity: 1;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
}
.site-main .demo-item ul li:hover img{
  opacity: .4;
}
.site-main .demo-item ul li img {
  max-width: 100%;
  height: auto;
  border: 10px solid #fff;
  box-sizing: border-box;
}
.copyright{
  text-align: center;
  padding-top: 40px;
}
@media screen and (max-width: 768px) {
  .site-main .demo-item ul li {
    width: 100%;
    padding: 40px 60px;
  }
}