*{
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
}
.header{
    min-height: 130vh;
    width: 100%;
    background-image: linear-gradient(rgba(112, 112, 112, 0.7), rgba(112,112,112,0.7)), url(img/Vernissage_Karte_A5_Save.jpg);
    background-position: center;
    Background-size: cover;
    position: relative;
}
nav{
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
}
nav img{
    width: 200px;
}
#sideNav{
    width: 200px;
    height: 100vh;
    position: fixed;
    right: -200px;
    top: 0;
    background: linear-gradient(0deg, rgba(255,255,255,0) 0%, rgba(222,222,222,1) 85%);
    z-index: 2;
    transition: 0.5s;
}
nav ul li{
    list-style: none;
    margin: 50px 20px;
}
nav ul li a{
    text-decoration: none;
    color: #2e2e2e;
    font-size: 25px;
}
#menuBtn{
    width: 50px;
    height: 60px;
    background: linear-gradient(0deg, rgba(255,255,255,0) 0%, rgba(222,222,222,1) 85%);
    text-align: center;
    position: fixed;
    right: 30px;
    top: 20px;
    border-radius: 3px;
    z-index: 3;
    cursor: pointer;
}
#menuBtn img{
    width: 30px;
    margin-top: 15px;
}
@media screen and (max-width: 770px){
        .text-box h1{
            font-size: 40px;
        }
}
body{
    background: transparent;
    background-color: #ffffff;
    background-size: cover;
    font-family: 'Poppins', sans-serif;
    color: #818181;
    font-size: 13px;
    margin: 0;
}
input, select, button{
    font-family: 'Poppins', sans-serif;
    color: #818181;
    font-size: 20px;
}
h3,h4{
    margin: 0;
}
img{
    max-width: 100%;
}
:focus{
    outline: none;
}
.wrapper{
    min-height: 100vh;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}
.inner{
    padding: 20px;
    background: linear-gradient(rgba(255, 255, 255, 0.7), rgba(225,225,225,0.7));
    border: 2px solid rgba(81, 81, 81, 0.7);
    backdrop-filter: blur(3px);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    max-width: 850px;
    position: center;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10%;
    display: flex;
    border-radius: 10px;
}
.inner form{
    width: 100%;
    padding-top: 36px;
    padding-left: 45px;
    padding-right: 45px;
}
.inner h3{
    text-transform: uppercase;
    font-size: 25px;
    text-align: center;
    margin-bottom: 28px;
}
.form-group{
    display: flex;
    color: #fff;
}
.form-group input{
  width: 50%;  
  color: #000000;
}
.form-group input:first-child{
    margin-right: 25px;
}
.form-wrapper{
    position: relative;
}
.form-control{
    background: transparent;
    border: 1px solid #818181;
    border: none;
    border-bottom: 1px solid #818181;
    display: block;
    width: 100%;
    height: 30px;
    padding-right: 0;
    margin-bottom: 25px;
}
.wrapper .inner .form-group .form-control{
    color: #818181;
}
.form-control input{
    color: #818181;
}
select{
    cursor: pointer;
    color: rgb(81,81,81);
}
select option[value=""][disabled]{
    display: none;
}
.submit{
    border: none;
    border-radius: 10px;
    text-decoration: none;
    width: 164px;
    height: 51px;
    margin: auto;
    margin-top: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 0;
    background: #333;
    font-size: 15px;
    color: #fff;
}
.submit:hover{
    background: #585858;
}
.article{
    background: transparent;
}
.adresse{
    align-items: baseline;
}


<!-------- Footer ---------->

img{
    width: 100px;
    height: 100px;
    object-fit: cover;
}

.footer{
    width: 80%;
    margin: auto;
    text-align: center;
    padding-top: 100px;
}
h1{
    font-size: 42px;
    font-weight: 600;
}
.row{
    margin-top: -5%;
    display: flex;
    justify-content: space-between;
}
.Logo-col{
    flex-basis: 31%;
    border-radius: 10px;
    margin-bottom: 2%;
    text-align: left;
}
.Logo-col img{
    width: 70%;
    border-radius: 10px;
}