.iaButton {
    display:flex;
    justify-content: center;
    margin: 10px 0;
}

.iaRow{
    margin-bottom: 1em;

}
.iaColumn {

    margin: 2em 2em;
}
.buttonsend {
    margin-top: 1em;

}
.buttonContainer {
    /* make element inline flex-container */
    /* this will make its children flex-items */
    display: inline-flex;
    /* align-items items in column */
    flex-direction: column;
    /* center items horizontally */
    align-items: center;
    /* center items vertically */
    justify-content: center;

    border: solid 3px black;
    width: 250px;
    height: 130px;
}
.spinner{
    display: block;
    width: 600px;
    height: 200px;
    margin-left: 100px;
    margin-top: 100px;
    padding-left: 350px;
}

.section-heading {
    width: 100%;
    height: 20px;
    text-align: center;
    margin: 30px 0 40px;
    /* color */
    color: #2f64b1;
    border-bottom: 2px #2f64b1 solid;
}

.section-title {
    background: white;
    font-size: 30px;
    padding: 10px;
}

#loader {
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid #3498db;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
}

/* Safari */
@-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}