#form, #image {
    overflow-y: scroll;
    min-height: 700px;
    min-width: 300px;
}

#image {
    position: relative;
}

#image img {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
}

#form img {
    max-width: 100%;
    max-height: 50px;
}

.container2 {
    margin: 5px 15px;
}

.form-control {
    height: 44px;
}
input:invalid {
    border: 1px solid red !important;
}

input:valid {
    border: 1px solid green !important;
}

.rectangle {
    opacity: 0.4;
    position: absolute;
    width: 150px;
    height: 20px;
    background-color: green;
    top: 90px;
    left: 50px;
    display: none;
}