@import url("https://fonts.googleapis.com/css?family=Roboto:400,100,300,700");

/**! 01. Reset **/
*,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
a {
  margin: 0;
  padding: 0;
}

/**! 02. Typography **/
html {
  font-size: 87.5%;
}
@media all and (max-width: 768px) {
  html {
    font-size: 81.25%;
  }
}

body {
  font-size: 1em;
  line-height: 1.85714286em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-family: "Roboto", "Helvetica Neue", "Helvetica", "Arial", "Verdana", "sans-serif";
  color: #666666;
  font-weight: 400;
}

h1,
h2,
h3,
h4,
h5,
h6,
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  font-family: "Roboto", "Helvetica Neue", "Helvetica", "Arial", "Verdana", "sans-serif";
  color: #252525;
  font-weight: 300;
  font-variant-ligatures: common-ligatures;
  margin-top: 0;
  margin-bottom: 0;
}

h1,
.h1 {
  font-size: 3.14285714em;
  line-height: 1.31818182em;
}

h2,
.h2 {
  font-size: 2.35714286em;
  line-height: 1.36363636em;
}

h3,
.h3 {
  font-size: 1.78571429em;
  line-height: 1.5em;
}

h4,
.h4 {
  font-size: 1.35714286em;
  line-height: 1.68421053em;
}

h5,
.h5 {
  font-size: 1em;
  line-height: 1.85714286em;
  color: #fff;
}

h6,
.h6 {
  font-size: 0.85714286em;
  line-height: 2.16666667em;
}

.lead {
  font-size: 1.35714286em;
  line-height: 1.68421053em;
}

@media all and (max-width: 767px) {
  h1,
  .h1 {
    font-size: 2.35714286em;
    line-height: 1.36363636em;
  }
  h2,
  .h2 {
    font-size: 1.78571429em;
    line-height: 1.5em;
  }
  h3,
  .h3 {
    font-size: 1.35714286em;
    line-height: 1.85714286em;
  }
  .lead {
    font-size: 1.35714286em;
    line-height: 1.68421053em;
  }
}

p,
ul,
ol,
pre,
table,
blockquote {
  margin-bottom: 1.85714286em;
}

ul,
ol {
  list-style: none;
  line-height: 1.85714286em;
}

ul.bullets {
  list-style: inside;
}

ol {
  list-style-type: upper-roman;
  list-style-position: inside;
}

blockquote {
  font-size: 1.78571429em;
  line-height: 1.5em;
  padding: 0;
  margin: 0;
  border-left: 0;
}

strong {
  font-weight: 600;
}

hr {
  margin: 1.85714286em 0;
  border-color: #fafafa;
}

a:hover,
a:focus,
a:active {
  text-decoration: none;
  outline: none;
}

.main {
  padding-top: 30px;
  padding-bottom: 30px;
  background-color: #101e2a;
}

.image-height {
  /*height: 450px;*/
  width: 100%;
}

.header {
  margin-top:110px;
  margin-bottom: 110px;
  text-align: center;
}

.header-text {
  color: #0095eb;
  font-size: 60px;
  line-height: 75px;
  display: inline-block;
  font-weight: 100;
  border-bottom: 1px solid #0095eb;
  letter-spacing: -3px;
  padding: 0px 10px 0px;
  margin-bottom: 25px;
}


.header-text2 {
  color: #7c8387;
  margin-bottom: 10px;
  font-size: 25px;
}

.hover-shadow {
  border-radius: 6px;
  backface-visibility: hidden;
  overflow: hidden;
  transition: 0.35s ease-out;
  -webkit-transition: 0.2s ease-in-out;
  -moz-transition: 0.35s ease-out;
}
.hover-shadow:hover {
  transform: translate3d(0, -10px, 0);
  -webkit-transform: translate3d(0, -6px, 0);
  box-shadow: 0 23px 40px rgba(0, 0, 0, 0.2);
}
.hover-shadow {
  border-color: #222;
}
.hover-shadow:hover {
  box-shadow: 0 10px 20px rgba(255, 255, 255, 0.2);
}

.text-center {
  text-align: center;
  padding-top: 30px;
  padding-bottom: 60px;
  color: #fff;
}

/* =-=-=-=-=-=-=- isotope start -=-=-=-=-=-=-=-==-=-=*/

/* ---- button ---- */

.button {
  display: inline-block;
  padding: 0.5em 0.98em;
  background: #EEE;
  border: none;
  border-radius: 7px;
  background-image: linear-gradient( to bottom, hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.2) );
  color: #222;
  font-family: sans-serif;
  font-size: 16px;
  text-shadow: 0 1px white;
  cursor: pointer;
}

.button:hover {
  background-color: #8CF;
  text-shadow: 0 1px hsla(0, 0%, 100%, 0.5);
  color: #222;
}

.button:active,
.button.is-checked {
  background-color: #28F;
}

.button.is-checked {
  color: white;
  text-shadow: 0 -1px hsla(0, 0%, 0%, 0.8);
}

.button:active {
  box-shadow: inset 0 1px 10px hsla(0, 0%, 0%, 0.8);
}

/* ---- button-group ---- */


a.btn.btn-success {
    padding: 20px 60px;
    /* text-transform: uppercase; */
    font-weight: bold;
    margin-top: 80px;
    letter-spacing: 0.5px;
}


.button-group:after {
  content: '';
  display: block;
  clear: both;
}

.button-group .button {
  float: left;
  border-radius: 0;
  margin-left: 0;
  margin-right: 1px;
}

/* ---- isotope ---- */

/* clear fix */
.grid:after {
  content: '';
  display: block;
  clear: both;
}

.element-item.alkali          { background: #F00; background: hsl(   0, 100%, 50%); }
.element-item.alkaline-earth  { background: #F80; background: hsl(  36, 100%, 50%); }
.element-item.lanthanoid      { background: #FF0; background: hsl(  72, 100%, 50%); }
.element-item.actinoid        { background: #0F0; background: hsl( 108, 100%, 50%); }
.element-item.transition      { background: #0F8; background: hsl( 144, 100%, 50%); }
.element-item.post-transition { background: #0FF; background: hsl( 180, 100%, 50%); }
.element-item.metalloid       { background: #08F; background: hsl( 216, 100%, 50%); }
.element-item.diatomic        { background: #00F; background: hsl( 252, 100%, 50%); }
.element-item.halogen         { background: #F0F; background: hsl( 288, 100%, 50%); }
.element-item.noble-gas       { background: #F08; background: hsl( 324, 100%, 50%); }


.category {
  top: 0;
  padding-bottom: 70px;
}

.category2 {
  color: #fff;
  background: #101e2a;
  border-color: #3f3f3f;
  padding-left: 30px;
  padding-right: 30px;
  padding-top: 10px;
  padding-bottom: 10px;
  border-radius: 0;
  min-width: 200px;
}

.category2:focus {
  background: #fff;
}
.category2:hover {
  color: #fff;
  background: #101e2a;
  border-color: #3f3f3f;
}


.background-list {
  background-color: #101e2a;
  color: #fff;
  padding: 10px;
  margin: 0;
}

.background-list li{
  cursor: pointer;
}

.dropdown-menu>li>a {
   color: #8f8f8f;
   padding: 4px 20px;
}

.dropdown-menu>li>a:hover {
  color: #fff;
  background-color: #101e2a;
}

.cat-hov:hover > ul
{
  display:list-item;
  z-index:100;
}

.footer-up {
  background-color: #153241;
  color: #fff;
  padding-top: 120px;
  padding-bottom: 120px;
  text-align: center;
}

.footer-up h2 {
  color: #fff;
}

.footer-up p {
  font-size: 18px;
  padding-top: 10px;
  margin-bottom: 20px;
}

footer {
  background: #101e2a;
  padding: 15px 0;
  text-align: center;
}

footer span.copyright {
  color: #999999;
  margin-top: 0;
  margin-bottom: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 19px;
  font-weight: 400;
}

footer span.copyright a:active, footer span.copyright a:focus {
  color: #FFFFFF;
}

a.website {
  color: #999999;
}

a.website:hover {
  color: #00c8aa;
}

.footer-site {
  color: #fff;
 }

 .footer-site:hover {
  color: #00c8aa;
}

.image-pading {
  padding: 10px;
}

/*-=-=-=-=-=*/

.scroll-up {
    position: fixed;
    display: none;
    bottom: 15px;
    right: 7px;
    z-index: 999;
}

.scroll-up a {
    background: #fff;
    display: block;
    height: 35px;
    width: 35px;
    text-align: center;
    line-height: 35px;
    font-size: 22px;
    color: #000;
    opacity: 0.6;
    border-radius: 2px;
}

p.view-cat {
    margin-bottom: 5px;
}