.presentaion_flayer{
    position: relative;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}
.presentaion_flayer .container{
    height: 100%;
}
.presentaion_flayer .next_section{
    height: 60px;
    cursor: pointer;
    width: 80px;
    margin: 0px 0 0 -40px;
    line-height: 60px;
    position: absolute;
    left: 50%;
    bottom: 0px;
    color: #FFF;
    text-align: center;
    font-size: 70px;
    z-index: 100;
    text-decoration: none;
    text-shadow: 0px 0px 3px rgba(0, 0, 0, 0.4);
    -webkit-animation: avia_fade_move_down 2s ease-in-out infinite;
    animation: avia_fade_move_down 2s ease-in-out infinite;
}
.presentaion_container{
    width: 100%;
    height: 100%;
    display: table;
}
.presentaion_textblock{
    display: table-cell;
    max-width: 300px;
    vertical-align: middle;
}
.presentaion_text{
    max-width: 600px;
}
.presentaion_flayer_2 .presentaion_text{
    max-width: 900px;
}
@media all and (min-width: 600px){
    .presentaion_text{
        padding: 60px 0 250px 0;
    }
    .presentaion_flayer_2 .presentaion_text{
        padding-bottom: 100px;
    }
}
@media all and (max-width: 599px){
    .presentaion_text{
        padding: 40px 0;
    }
}
.presentaion_btns .btn{
    margin-top: 20px;
    font-size: 18px;
    padding: 10px 20px;
}
.presentaion_flayer_2 .presentaion_btns .btn {
    margin-top: 20px;
    font-size: 16px;
    padding: 15px 30px;
}
.presentaion_flayer:not(.presentaion_flayer_2) .presentaion_btns .btn{
    border-radius: 5px !important;
}
.presentaion_flayer.presentaion_flayer_2 .presentaion_btns .btn{
    margin-right: 10px;
}
@-webkit-keyframes avia_fade_move_down{
    0%{-webkit-transform:translate(0,-20px);opacity:0}
    50%{opacity:1}
    100%{-webkit-transform:translate(0,20px);opacity:0}
}
@keyframes avia_fade_move_down{
    0%{transform:translate(0,-20px);opacity:0}
    50%{opacity:1}
    100%{transform:translate(0,20px);opacity:0}
}
.no-border{
    border: 0;
}

.presentation_block .block_content *,
.presentation_block .block_content{
    color: #fff;
}
.presentation_block .block_content{
    margin-bottom: 20px;
}
.presentation_block{
    max-width: 405px;
    width: 100%;
    text-align: center;
    padding: 20px;
    background: rgba(0,0,0,.5);
}
.presentation_title{
    margin-bottom: 30px;
}
.presentation_block .btn-u{
    float: left;
    border-radius: 5px !important;
    font-size: 18px;
}
.presentation_block .btn-brd{
    margin-left: 5px;
    float: left;
    padding-top: 3px;
    padding-bottom: 3px;
}
.presentation_block .block_btns{
    text-align: center;
}
.presentation_block .block_btns .clearfix{
    display: inline-block;
}
.presentation_block_1 .presentation_block{
    float: right;
}
.presentation_block_2 .presentation_block{
    float: left;
}
@media all and (max-width: 992px){
    .presentation_block .btn-u{
        font-size: 14px;
    }
}
@media all and (max-width: 768px){
    .presentation_block_1 .presentation_block,
    .presentation_block_2 .presentation_block{
        float: none;
        margin-left: auto;
        margin-right: auto;
    }
    .presentation_block{
        padding: 10px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
    .presentaion_blocks{
        padding: 60px 0 40px 0;
    }
}