*{
    margin: 0;
    box-sizing: border-box;
}
.header{
    background:#b3dee5;
    position: sticky;
    top: 0;
    width: 100%;
    overflow: visible;
    z-index: 1;
}

ul{
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-size: 17px;
}
li{
    float: right;
}
li a{
    display: inline-block;
    padding: 20px 16px;
    text-decoration: none;
    color: white;
    text-align: center;
}

li a:hover:not(.active){
    background-color: #83b3bb;
}
.active{
    background-color: #70aab3;
}




#header{
    color: white;
    float: left;
    text-align: center;
    margin: 0;
    padding: 10px;
}

.background{
    background-color: #a7d6dd;
    padding: 10px 180px 10px 180px;
    height: 3700px;
}
#bg{
    border-radius: 20px;
}


.isi-kolom1{
    width: 100%;
    height: 700px;
    background-image: url(sekolah.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    opacity: 1;
}
.kotak{
    width: 100%;
    height: 3600px;
    background-color: white;
    padding: 25px;
}

.isikotak1{
    width:100%;
    padding: 10px;
    height: 150px;
    display: block;
    text-align: center;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2), 0 -1px 8px 0 rgba(0,0,0,0.2);
    border-radius: 20px;
    transition: 0.3s;
    
}
.isikotak1:hover{
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 -2px 16px 0 rgba(0,0,0,0.2)
}
.isikotak2{
    width: 100%;
    text-align: center;
    margin-top:10px;
    padding: 10px;
    
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2), 0 -1px 8px 0 rgba(0,0,0,0.2);
    border-radius: 20px;
    transition: 0.3s;
    overflow: auto;
}
.isikotak2:hover{
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 -2px 16px 0 rgba(0,0,0,0.2)
}

.kotak2{
    padding: 30px;
    overflow: auto;
}
.kotak2isi{
    width: 50%;
    border-top: 1px solid rgb(197, 197, 197);
    float: left;
}
.kotak2isi2{
    width: 50%;
    border-top: 1px solid rgb(197, 197, 197);
    float: left;
    
}
.kotak2isi h1,.kotak2isi2 h1{
    text-align: left;
}

.kotakjurusan{
    width:30%;
    padding: 10px;
    display: inline-block;
    text-align: center;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2), 0 -1px 8px 0 rgba(0,0,0,0.2);
    border-radius: 20px;
    transition: 0.3s;
}
.kotakjurusan:hover{
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 -2px 16px 0 rgba(0,0,0,0.2);
}
.kotakjurusan::after{
    content: "";
    clear: both;
    display: table;
}
.selengkapnya{
    padding: 15px;
    display: inline-block;
    background-color: #31525b;
    border-radius: 20px;
    margin-top: 20px;
    color: white;
    text-decoration: none;
    text-align: right;
}



#isikolom{
    position: relative;
    top: 40%;
    text-align: center;
    font-size:60px;
    color: white;
    text-shadow: 2px 2px 2px black;
}



.footer{
    width: 100%;
    height: 180px;
    background-color: #31525b;
}
#footer{
    color: white;
    position: relative;
    top: 50%;
    text-align: center;
    font-size: 12px;
}
.isifooter{
    padding: 20px;
    height: 120px;
}
.isifooter2{
    height: 70px;
    border-top: 1px solid #253f46;
    width: 100%;
    background-color: #31525b;
}