body {
    font-family: "Rubik", "Arial", sans-serif;
    max-height: 300px;
  }

html, body
{
    height: 100%;
}

.text_2 {
    line-height:1.3;
    font-size: 120%;
    text-align: justify;
    width: calc(100% / 3);
    float: left;
    padding: 20px;
}

.text_3 {
    line-height:1.3;
    font-size: 100%;
    text-align: justify;
    width: calc(100% / 3);
    float: left;
    padding: 20px;
}

.uzb {
    text-align: right;
}

.text_4 {
    margin-top: -12%;
    font-size: 120%;
}

.text_6 {
    margin-top: -12%;
    font-size: 120%;
    margin-left: 60%;
}

.text_5 {
    line-height:1.3;
    font-size: 100%;
    text-align: justify;
    width: calc(100% / 7);
    float: left;
    padding: 20px;
    margin-left: -1%;
}

.size {
    font-size: 110%;
}

.picture_5 {
    width: 200px;
    height: 200px;
    margin-left: 0%;
    margin-top: 1%;
}

.picture_4 {
    width: 230px;
    height: 200px;
    margin-left: 44.5%;
    margin-top: 1%;
}

.text_10 {
    line-height:1.3;
    font-size: 100%;
    text-align: justify;
    width: calc(100% / 7);
    float: left;
    padding: 20px;
    margin-top: -21.5%;
    margin-left: 59%;
}

.text_9 {
    font-size: 110%;
    margin-left: 60.6%;
    margin-top: -11.8%;
}

.text_8 {
    line-height:1.3;
    font-size: 100%;
    text-align: justify;
    width: calc(100% / 7);
    float: left;
    padding: 20px;
    margin-top: 1%;
    margin-left: 43.5%;
}

.picture_3 {
    width: 230px;
    height: 200px;
    margin-left: 0%;
    margin-top: 1%;

}

.text_7 {
    margin-top: 15%;
    font-size: 120%;
    margin-right: 40%;
}

.picture_2 {
    width: 230px;
    height: 200px;
    margin-left: 0%;
    margin-top: 1%;
}

.picture {
    width: 230px;
    height: 200px;
    margin-left: -16%;
    margin-top: 4%;
}

body
{
    margin: 0;
    background-color: #F0F8FF;
    overflow: hidden;
}

.box {
    margin-left: 28%;
    margin-right: 28%;
}

.text{
    line-height:1.3;
    font-size: 110%;
    text-align: justify;
    float: left;
    padding: 20px;
}

nav
{
    position: absolute;
    top: 7%;
    right: 0;
    left: 0;
    width: 319px;
    display: table;
    margin: 0 auto;
    transform: translateY(-50%);
}

nav a
{
    position: relative;
    width: 33.333%;
    display: table-cell;
    text-align: center;
    color: #32CD32;
    text-decoration: none;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-weight: bold;
    padding: 10px 15px;
    transition: 0.2s ease color;
}

nav a:before, nav a:after
{
    content: "";
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    transition: 0.2s ease transform;
}

nav a:before
{
    top: 0;
    left: 10px;
    width: 6px;
    height: 6px;
}

nav a:after
{
    top: 5px;
    left: 18px;
    width: 4px;
    height: 4px
}

nav a:nth-child(1):before
{
    background-color: yellow;
}

nav a:nth-child(1):after
{
    background-color: red;
}

nav a:nth-child(2):before
{
    background-color: #00e2ff;
}

nav a:nth-child(2):after
{
    background-color: #89ff00;
}

nav a:nth-child(3):before
{
    background-color: purple;
}

nav a:nth-child(3):after
{
    background-color: palevioletred;
}

nav a:nth-child(4):before
{
    background-color: rgb(255, 0, 0);
}

nav a:nth-child(4):after
{
    background-color: rgb(64, 86, 245);
}

#indicator
{
    position: absolute;
    left: 5%;
    bottom: 0;
    width: 30px;
    height: 3px;
    background-color: #F0F8FF;
    border-radius: 5px;
    transition: 0.2s ease left;
}

nav a:hover
{
    color: #2E8B57;
}

nav a:hover:before, nav a:hover:after
{
    transform: scale(1);
}

nav a:nth-child(1):hover ~ #indicator
{
    background: linear-gradient(130deg, yellow, #89ff00);
}

nav a:nth-child(2):hover ~ #indicator
{
    left: 34%;
    background: linear-gradient(130deg, #00e2ff, #89ff00);
}

nav a:nth-child(3):hover ~ #indicator
{
    left: 56%;
    background: linear-gradient(130deg, purple, #89ff00);
}

nav a:nth-child(4):hover ~ #indicator
{
    left: 78%;
    background: linear-gradient(130deg, red, #89ff00);
}

#ytd-url {
  display: block;
  position: fixed;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  margin: 20px;
  color: #F0F8FF;
  font-family: Arial;
  font-size: 14px;
  text-decoration: none;
  background-color: #000;
  border-radius: 4px;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.3);
  z-index: 125;
}

.bottom {
    display: none;
    position: fixed;
    right: 30px;
    bottom: 50px;
    width: 50px;
    height: 50px;
    border-color: #00e2ff;
    border-radius: 50%;
    background-color: #00e2ff;
}

.bottom:hover {
    filter: brightness(1.5);
    outline: none;
}

.bottom::before,
.bottom::after {
    content: '';
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translate(-50%, 50%);
}

.bottom::before {
    width: 5px;
    height: 25px;
    border-top-right-radius: 3px;
    border-top-left-radius: 3px;
    background-color: darkcyan;
}

.bottom::after {
    width: 15px;
    height: 15px;
    transform: translate(-50%, 50%) rotate(45deg);
    border-top: 5px solid darkcyan;
    border-left: 5px solid darkcyan;
}