html{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin:0;
    padding: 0;
}

body{
    text-align: center;
    background: rgb(135,197,217);
    background: radial-gradient(circle, rgba(135,197,217,1) 0%, rgba(7,128,214,1) 100%);
}

p{
   margin-top: 115px;
   width: 100px;
   color:white;
   background-color: #53a1a1;
   padding:5px;
   font-size: 14px;
   text-transform: uppercase;
   box-shadow: 0 6px 6px 0 rgba(0,0,0,0.14),0 3px 1px -2px rgba(0,0,0,0.12),0 1px 5px 0 rgba(0,0,0,0.2);
}

h1{
    font-family: 'Courier New', Courier, monospace;
    height: 50px;
    font-size: 22px;
    text-align:left;
    margin:0;
    padding:15px 0 0 20px;
}

header{
    background-color: #53a1a1;
    height: 80px;
    margin: 0;
    padding: 0;
    box-shadow: 0 6px 6px 0 rgba(0,0,0,0.14),0 3px 1px -2px rgba(0,0,0,0.12),0 1px 5px 0 rgba(0,0,0,0.2);
}

#center{
    width: 1200px;
    margin:auto;
    margin-top:-80px;

}

#clicker_dau{  
    outline:none;
    cursor:pointer;
}


#hiddendiv_dau, #hiddendiv_habitat, #hiddendiv_ccas, #hiddendiv_dasa, #hiddendiv_dag {
    display: none;
}

#clicker_dau[type=radio]:checked ~ #hiddendiv_dau{
    display: block;
}

#clicker_habitat[type=radio]:checked ~ #hiddendiv_habitat{
    display: block;
}

#clicker_ccas[type=radio]:checked ~ #hiddendiv_ccas{
    display: block;
}

#clicker_dag[type=radio]:checked ~ #hiddendiv_dag{
    display: block;
}

a{
    text-decoration: none;
    color:black;
}

.interne{
    background-color: rgb(170, 113, 223);
}

label { 
    display: inline-block;
    cursor: pointer;
    font-size: 22px;
    color: white;
    padding-top: 25px;
    padding-bottom: 30px;
    height:25px;
    width: 200px;
    text-align: center;
}

label:hover{
    background-color: #468686; 
}

input[type="radio"] {
    display: none;
}

ul{
    margin-top:-20px;
}

li{
    min-width: 100px;
    height: 100px;
    margin: 80px 40px 20px 0;
    list-style-type: none;
    float: left;    
    background-repeat: no-repeat;
    background-position-x: center;
    background-size: contain;
    opacity:0.9;
}

li:hover{
    transform: scale(1.1);
    font-weight: 600;
    opacity:1;
}


@media screen and (max-width: 1000px) {
    #center{
        width:700px;
        overflow: hidden;
    }
    label{
        width:100px;
    }
} 


@media screen and (max-width: 700px) { 
    #center{
        width:600px;
        overflow: hidden;
    }
    label{
        width: 70px;
    }
    li{
        width: 70px;
        margin: 10px 30px 0 0;
    } 
    h1,p{
        display:none;
    }
} 




@media screen and (max-width: 600px) { 
    #center{
        width:600px;
        overflow: hidden;
    }
    label{
        width: 70px;
    }
    li{
        width: 70px;
        margin: 20px 20px 0 0;
    } 
    h1,p{
        display:none;
    }
} 


@media screen and (max-width: 500px) { 
    #center{
        width:400px;
        overflow: hidden;
    }
    label{
        width: 70px;
    }
    li{
        width: 80px;
        margin: 20px 20px 0 -10px;
    } 
    h1,p{
        display:none;
    }
}