body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
}
body::before{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #9da8aa;
    z-index: -100;
    filter: opacity(30%) blur(4px);
}

.formulaire, .element4{
    border: 1px solid #429;
    text-align: center;
    display: grid;
    align-items: center;
    justify-content: center;
    margin: 10% 10%;
    border-radius: 6px;
    
}
.element4 a{
    border: 5px solid #31657b;
    margin: 10% 20%;
}
.element4 h3{
    color: #2a2f31;
    text-shadow:1px 1px rgb(69, 69, 146);
    font-family:'Courier New', Courier, monospace
}
.element4 h4{
    color: rgb(137, 5, 5);
    font-family: 'Courier New', Courier, monospace;
}
.inscription{
    z-index: -1;
    border: 1px solid black;
    text-align: center;
    display: grid;
    align-items: center;
    justify-content: center;
    margin: 10% 10%;
    border-radius: 6px;
    background-color: rgb(233, 234, 234);
}
.inscription input:hover{
    border-bottom-color: red;
}

h1{
    padding: 29px;
}

label{
    padding: 20px;
}
input{
    margin: 10px;
    border: 0;
    border-bottom: 2px solid green;
    outline: none;
    background: transparent;
    text-align: center;
    font-size: medium;
}
.formulaire input:focus,
.formulaire input:invalid{
    border-bottom-color: blue;
}

.formulaire input:focus,
.formulaire input:hover{
    border-bottom-color: red;
}

.formulaire input:focus,
.formulaire input::placeholder{
    border-bottom-color: red;
}

button{
    margin: 1rem auto;
    padding: 1rem 2rem;
    background-color:#9ca5a9 ;
    cursor: pointer;
}
button:active{
    box-shadow: inset 0 0 0 30px #0c6980;
}
h5{
    color: blue;
    text-align: center;
}
.formulaire h5:focus,
.formulaire h5:hover{
    cursor: pointer;
}

a{
    text-decoration: none;
}