html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

body{
    background: black;
}    
.videoBox{
    position: relative;
    width: 100%;
    z-index: -1;
    
}
.videoBox video{
    position: absolute;
    opacity: .8;
    height: 100vh;
    width: 100%;
    object-fit: cover;
}




.logo{
    position: relative;
    text-align: center;
    padding-top: 120px;
}
.logo img{
    width: 800px;
}

.texts{
    position: relative;
    text-align: center;
    color: white;
}
.texts .h1{
    color: white;
    font-size: 80px;
    padding-bottom: 20px;
    font-weight: bold;
}

.texts .h1-m{
    color: white;
    font-size: 80px;
    padding-bottom: 20px;
    font-weight: bold;
    display: none;
}
.texts .h3{
    color: white;
    font-size: 20px;
    padding-bottom: 30px;
}

.a{
    width: 150px;
    margin: 0 auto;
    background: white;
    padding: 5px;
    border-radius: 5px;
}

a{
    text-decoration: none;
    color: black;
    font-size: 30px;
}
.a:hover{
    background-color: red;
}
a:hover{
    color: white;
}

@media ( max-width: 1100px ){
    .logo{
        padding-top: 220px;
    }
    .logo img{
        width: 500px;
    }
    .texts .h1{
        font-size: 60px;
        padding-bottom: 20px;
    }
    .texts .h3{
        font-size: 20px;
        padding-bottom: 30px;
    }
    
    .a{
        width: 120px;
        padding: 5px;
    }
    
    a{
        font-size: 20px;
    }
}
@media ( max-width: 650px ){
    .logo{
        padding-top: 280px;
    }
    .logo img{
        width: 400px;
    }
    .texts .h1{
        font-size: 60px;
        padding-bottom: 20px;
    }
    .texts .h3{
        font-size: 15px;
        padding-bottom: 30px;
    }
    
    .a{
        width: 120px;
        padding: 5px;
    }
    
    a{
        font-size: 20px;
    }
}
@media ( max-width: 460px ){
    .logo{
        padding-top: 0px;
    }
    .logo img{
        width: 340px;
    }
    .texts .h1{
        display: none;
        font-size: 50px;
        padding-bottom: 20px;
        padding-top: 70px;
    }
    .texts .h1-m{
        display: block;
        font-size: 40px;
        padding-bottom: 20px;
        
    }
    #h1-mm{
        padding-top: 70px;
    }
    .texts .h3{
        font-size: 18px;
        padding-bottom: 30px;
    }
    
    .a{
        width: 100px;
        padding: 5px;
    }
    
    a{
        font-size: 20px;
    }
}