#myForm {
      display: none;
      position: fixed;
      top: 50%;
      left: 50%;
      /* bring your own prefixes */
      transform: translate(-50%, -50%);
    }

#mainButton {
    margin: 5px;
    padding: 5px;
    flex: 1;
    background-color: black;
    color: orange;
    font-size: 20px;
    font-style: bold;
}

.wrapper {
    height: 100%;
    min-width: 300px;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    background-color: dimgrey;
}

form {
    width: 100%;
    height: 100%;
    min-width: 300px;
}

.row {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    padding: 10px 0px;
    min-height: 7vh;
}
.contact-form > h2{
    margin:0;
    padding: 0;
    color: orange;
    text-align: center;
}
.contact-form {
    width: 100%;
    position: relative;
}
input {
    width: 90%;
    margin: 5px;
    padding: 5px;
    flex: 1;
}

#closeForm{
  position: absolute;
  top: 0;
  right: 0;
  color: black;
  font-size: 15px;
  cursor: pointer;
  visibility: hidden;
  
}

#myForm {
    min-width: 350px;
    max-width: 100vw;
}
#myForm .row {
    max-width: 100vw;
    min-width: 300px;
}
#myForm > input {
    margin: 5px;
    padding: 5px;
    flex: 0;
    max-width: 255px;

}


::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
  color: black;
  opacity: 1; /* Firefox */
}

:-ms-input-placeholder { /* Internet Explorer 10-11 */
  color: black;
}

::-ms-input-placeholder { /* Microsoft Edge */
  color: black;
}