.wpcf7-form-control-wrap
{
    display: block;
}
#captcha
{
    user-select: none;
    background-color: #c0c0c0;
    width: 150px;
    height: 60px;
    font-size: 30px;
    font-weight: bold;
    display: inline-block;
    padding: 15px 4px;
    text-align: center;
    -webkit-text-stroke: 1px black;
    color: #fff;
    text-shadow: 3px 3px 0 #000,-1px -1px 0 #000,1px -1px 0 #000,-1px 1px 0 #000,1px 1px 0 #000;
}
#arithmathic_refresh
{
    background-color: transparent;
    padding: 0;
}
#arithmathic_refresh svg
{
    width: 18px;
    height: 18px;
}
#userInput, #rtn
{
    margin: 5px 0;
}
#arithmetic_cal
{
    width: 100px;
    height: 30px;
    font-size: 20px;
    display: inline-block;
}
@keyframes spin
{
    0%
    {
        transform: rotate(0deg);
    }
    100%
    {
        transform: rotate(360deg);
    }
}
.spin-rotate
{
    animation: spin 1s linear infinite;
}