h1 {
    color: #435b71;
    text-align: center;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
}

h1 {
    font-weight: 700;
    color: #3f61ff;
}

h2 {
    font-weight: 300;
    ;
}

h4 {
    position: relative;
    font-size: 1.6rem;
    color: #313131;
}

h4:before {
    content: "";
    background: #3f61ff;
    width: 53px;
    height: 4px;
    position: absolute;
    bottom: -22px;
    left: 0;
}

label {
    width: 20%;
}

.messageSuccess {
    opacity: 0;
    transition: 0.3s;
}

.activeCopied {
    opacity: 1;

}

.btn {
    width: 165px;
}

.btn-primary {
    background-color: #3f61ff;
}

form {
    box-shadow: 0 2px 43px -4px rgba(0, 0, 0, .19);
    border-radius: 5px;
    background: white;
    max-width: 85%;
}

.popup-success {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    text-align: center;
    margin-top: auto;
    display: flex;
    background: white;
    font-size: 72px;
    opacity: 0;
}

.popup-success p {
    margin: auto;
}

.fade-in-out {
    animation: fadeInOut ease 1.5s;
    -webkit-animation: fadeInOut ease 1.5s;
    -moz-animation: fadeInOut ease 1.5s;
    -o-animation: fadeInOut ease 1.5s;
    -ms-animation: fadeInOut ease 1.5s;
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@-moz-keyframes fadeInOut {
    0% {
        opacity: 0;
    }

    75% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@-webkit-keyframes fadeInOut {
    0% {
        opacity: 0;
    }

    75% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@-o-keyframes fadeInOut {
    0% {
        opacity: 0;
    }

    75% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@-ms-keyframes fadeInOut {
    0% {
        opacity: 0;
    }

    75% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@media screen and (max-width: 768px) {
    form {
        max-width: 100%;
        width: 100%;
    }
    h4{
            font-size: 1.5rem;
    }

    .d-flex {
        -webkit-box-orient: vertical !important;
        -webkit-box-direction: normal !important;
        -ms-flex-direction: column !important;
        flex-direction: column !important;
    }
}