*, *:before, *:after {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.background-common {
    background-image: url(main.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    width: 100%;
    height: 100vh;
    position: relative;
    z-index: 2;
}
.main-text {
    position: relative;
    z-index: 2;
    height: 20px;
}
.s1-txt3 {
    font-size: 12px;
    color: #ccc;
    line-height: 1.4;
}
.size1 {
    width: 100%;
    min-height: 100vh;
}
.flex-col-c-sb {
    -webkit-flex-direction: column;
    -moz-flex-direction: column;
    -ms-flex-direction: column;
    -o-flex-direction: column;
    flex-direction: column;
}
.flex-col-c-sb {
    justify-content: space-between;
    -ms-align-items: center;
    align-items: center;
}
.flex-w {
    -webkit-flex-wrap: wrap;
    -moz-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    -o-flex-wrap: wrap;
    flex-wrap: wrap;
}
.flex-w, .flex-col-c-sb{
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
}
.p-r-15 {
    padding-right: 15px;
}
.p-l-15 {
    padding-left: 15px;
}
.p-b-35 {
    padding-bottom: 35px;
}
.p-t-55 {
    padding-top: 55px;
}
.l1-txt1 {
    font-size: 50px;
    color: #fff;
    line-height: 1.2;
    text-transform: uppercase;
}
.txt-center {
    text-align: center;
}
.p-b-10 {
    padding-bottom: 10px;
}
.l1-txt2 {
    font-size: 30px;
    color: #fff;
    line-height: 1.2;
}
.txt-center {
    text-align: center;
}
.s1-txt3 {
    font-size: 12px;
    color: #ccc;
    line-height: 1.4;
}
@media (max-width: 781px) {
    body{
        overflow: hidden;
    }
    .background-common {
        background-color: black;
        background-image: url(logo.png);
        background-repeat: no-repeat;
        background-size: contain;
        background-position: center;
    }
}
.bottom-left-link {
    position: fixed;
    bottom: 15px;
    left: 15px;
    font-size: 12px;
    color: #ccc;
    z-index: 10;
    text-decoration: none;
}