html {
    font-size: 14px;
    margin: 0;
    padding: 0;
}
.container, .container-fluid {
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
}
@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
    position: relative;
    min-height: 100%;
    margin: 0;
    padding: 0;
}
body {
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
}
.footer {
    border-top: 1px solid #dee2e6; 
    color: #6c757d; 
    padding: 1rem 0; 
    font-size: 0.875rem; 
    background-color: transparent;
    width: 100%;
}

.container {
    margin: 0 auto;
    padding: 0 15px;
    width:100%;
    text-align: center; 
}
.display-up-main-text {
    color: #fff;
    font-size: 60px;
    font-weight: 600;
}
.display-main-text {
    color: #000;
    font-size: 90px;
    font-weight: 700;
}
.under-center{
    margin-top:100px;
}
.display-sub-text {
    font-size: 25px;
}
.up-width-hander{
    width:100%;
    height:100px;
}
.botton-under-hander {
    width: 250px;
    height: 60px;
    margin-top: 10px;
    border-radius: 20px;
    background: #fff;
    font-size: 23px;
    border: none;
    margin-left: 100px;
    color: #000;
    font-weight: 600;
    -webkit-box-shadow: 9px 4px 8px 0px rgba(34, 60, 80, 0.2);
    -moz-box-shadow: 9px 4px 8px 0px rgba(34, 60, 80, 0.2);
    box-shadow: 9px 4px 8px 0px rgba(34, 60, 80, 0.2);
}
.main-div {
    margin: 0;
    width: 100%;
    height: 800px;
    background: url("../image/fon.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
}
.under-center{
    width:50%;
    margin-top:150px;
}
.second-div {
    float: left;
    width: 100%;
    height: 700px;
    background: #fff;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.third-div {
    float:left;
    width: 100%;
    height: 700px;
    background: #efefef;
    opacity: 0;
    transform: translateY(50px); 
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
    .third-div.visible {
        opacity: 1;
        transform: translateY(0);
    }
.second-div.visible {
    opacity: 1;
    transform: translateY(0);
}
.uder-div-pov{
    width:70%;
}
.uder-div-pov-left {
    margin-top: 100px;
    float: left;
    width: 60%;
    text-align: left;
    color: #000;
}
.uder-div-pov-right {
    width: 40%;
    float: right;
    margin-top: 100px;
    color:#000;
}
.img-under-div{
    width:100%;
}
.img-center-on{
    width:45%;
    margin-top:50px;
}