.form-group input, .form-group textarea{
    font-size: 18px;
    border-radius: 10px;
    padding-left: 2%;
    border: 1px solid black;
}
.form-group input:focus{
    outline-color: #18bc9c;
}
.form-group textarea:focus{
    outline-color: #18bc9c;
}
#message-sumbit{
    cursor: pointer;
    transition:  0.3s;
    padding: 10px; 
    background: #18bc9c; 
    color: white; 
    font-size: 1em; 
    border: none; 
    border-radius: 5px;
}
#message-sumbit:hover{
    background: #15a589;
}
@media (max-width: 768px){
    .form-group textarea{
        width: 100%;
    } 
}