body {
    padding-top: 70px;
}

.navbar {
    height: 70px;
    border-bottom: 1px solid #000;
    background: #fff;
}

.droparea {
    border: 4px dashed yellow;
    padding-top: 30px;
    padding-bottom: 30px;
    padding-left: 30px;
    padding-right: 30px;
    text-align: center;
    border-radius: 20px;
    cursor: pointer;
}

.droparea > p {
    color: #fff;
}

#container-app {
    min-height: 10%;
    transition: all 1s ease-out;
}

.btn-yellow {
    background: yellow;
}
.btn-yellow:hover {
    background: rgba(255, 255, 0, 0.89);
}

.btn-outline-yellow {
    border-color: yellow;
    color: #fff;
}

.btn-outline-yellow:hover {
    background: yellow;
    border-color: yellow;
    color: #000;
}

footer {
    background: rgb(54, 54, 54);
    color: #fff;
    padding-top: 20px;
    padding-bottom: 20px;
}

footer a {
    color: #fff !important;
}