body {
    padding-top: 40px; 
    background-color: #003d6c;
}
a{
    text-decoration: none;
}

header {
    position: fixed;
    width: 100%; 
    height: 40px; 
    background: #015c07; 
    padding: 20px 60px; 
    box-sizing: border-box;
    top: 0; 
    left: 0; 
    display: flex; 
    align-items: center; 
    display: flex; 
    justify-content:space-between;
    z-index: 1;
}

header .nav .menu {
    display: flex; 
}

header .nav .menu li {
    list-style: none; 
    margin-left: 40px;
}

header .nav .menu li a{
   color: #e4f0a0;
   text-shadow: 0 00 2px #000;
   font-weight:bold;
   text-decoration: none;
}
header h1{
    font-size: 20px;
    color: #fff;
}

#Top{
    position: relative;
    height: 100vh;
} 

#video-area{
    position: fixed;
    z-index: -1;
    top: 0;
    right:0;
    left:0;
    bottom:0;
    overflow: hidden;
}

#Top-Video {
    position: absolute;
    z-index: -1;
    width: 177.77777778vh;
    height: 56.25vw;
    min-height: 100%;
    min-width: 100%;
    opacity: 50%;
}

#Top h1{
    position:absolute;
    top: 37%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    color:#ffffff;
    background-color: #2b44a0;
    text-shadow: 0 1 50px #fff;
    font-size: 100px;
    border-radius: 10px;
    z-index: 0;
}

.content{
    align-items: center;
    background-color: #ffffff8e;
    width: 1000px;
    padding-left: 5%;
    position: relative;
    margin: 0 auto 80px auto;
    padding-top: 10px;
    padding-bottom: 30px;
    border-radius:  20px;
    text-shadow: 0 0 10px #fff;
}

/**/

.code{
    padding-top: 2.5%;
    padding-left: 5%;
    padding-right: 5%;
    padding-bottom: 2.5%;
    width: 800px;
    line-height: 4px;
    position: relative;;
    background-color: #ffffff55;
    border-radius:  20px;
}

.list{
    padding-top: 2.5%;
    padding-left: 5%;
    padding-right: 5%;
    padding-bottom: 2.5%;
    width: 800px;
    background-color: #ffffff55;
    border-radius:  20px;
}

.red{
    color: firebrick;
    text-shadow: 0 0 1px firebrick;
}

.green{
    color: darkgreen;
    text-shadow: 0 0 1px darkgreen;
}

.hilight{
    padding-top: 2.5%;
    padding-left: 5%;
    padding-right: 5%;
    padding-bottom: 2.5%;
    width: 800px;
    background-color: #ffffff55;
    border-radius:  20px;
    line-height: 10px;
}

footer {
    height: 40px; 
    background: #fff873; 
    padding-left: 10px;
    top: 0; 
    left: 0; 
    right: 0;
    display: flex; 
    align-items: center; 
    color: #000;
    z-index: -1;
    padding-top: 5px;
    border-radius: 5px;
    white-space: nowrap;
}

.fotter-link{
    align-items: flex-end;
    text-align:right;
    margin-left: 1040px;
}

.blank{
    height: 325px;
}