html{
    min-height:100%;/* make sure it is at least as tall as the viewport */
    position:relative;
}
body{
    font-family: 'Roboto', sans-serif;
    height:100%; /* force the BODY element to match the height of the HTML element */
}
.main{
    font-family: 'Roboto', sans-serif;
    /*position:absolute;
    top:0;
    bottom:0;
    left:0;
    right:0;
    overflow:hidden;
    z-index:-1;*/ /* Remove this line if it's not going to be a background! */
    background: linear-gradient(253deg, #7f8994, #acefff);
    background-size: 400% 400%;
    -webkit-animation: bg 30s ease infinite;
    -moz-animation: bg 30s ease infinite;
    animation: bg 30s ease infinite;
}



@-webkit-keyframes bg {
    0%{background-position:11% 0%}
    50%{background-position:90% 100%}
    100%{background-position:11% 0%}
}
@-moz-keyframes bg {
    0%{background-position:11% 0%}
    50%{background-position:90% 100%}
    100%{background-position:11% 0%}
}
@keyframes bg {
    0%{background-position:11% 0%}
    50%{background-position:90% 100%}
    100%{background-position:11% 0%}
}

.corps{
    font-family: 'Roboto', sans-serif;
    background-color: white;
    width: 600px;
    padding: auto;
    margin: auto;
    

}

.corps_main{
    color: rgba(0, 0, 0, 0.87);
    margin-left: 15px;
    margin-right: 15px;
    width: 570px;
}

.btn{
    background-color: #2dd7ff;
}

#sub{
    background-color: #2dd7ff;
    border-color: #2dd7ff;
    box-shadow: 0px 3px 1px -2px rgba(0,0,0,0.2),0px 2px 2px 0px rgba(0,0,0,0.14),0px 1px 5px 0px rgba(0,0,0,0.12);
    width: 230px;
    height: 40px;
    cursor: pointer;
}

#sub:hover{
    background-color: #2599b4;
    border-color: #2599b4;
}

.consigne{
    
    text-align: center; 
     font-size: 1.3rem;
    font-family: Flexo, Roboto, Helvetica, Arial, sans-serif;
            font-weight: 400;
            line-height: 1.43;
}

.list{
    align-items: center;
    
    display: flex;
    flex-wrap: wrap;
    float: center;
    list-style-type: none;
}
#second{
    position: relative;
    
}

.list li{
    margin: 5px;
}

footer{
    display: flex;
}

.fin{
    width: 580px;
    padding: auto;
    margin: auto;
    
}

.fin_ul{
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    float: center;
    list-style-type: none;
    position: relative;
    left: 18px;
}
.fin_ul li{
    margin: 5px;
}

.fin_ul a{
    color: rgb(108, 117, 125);
    font-size: 1rem;
font-family: 'Roboto', Helvetica, Arial, sans-serif;
font-weight: 400;
line-height: 1.43;

}


.fin_ul a:hover{
    color: rgb(108, 117, 125);
}


.form{
    width: 500px;
    margin:auto;
    padding:auto;
}

@media only screen and (max-width: 600px) {
    .main{
        width:auto;
    }
    .corps{
        width:auto;
        
    }

    .form{
        width:100%;
    }

    .corps_main{
        width:90%;
    }

    .fin{
        width:100%;
    }
}