html,
body {
    height: 100%;
}

body {
    display: -ms-flexbox;
    display: -webkit-box;
    display: flex;
    -ms-flex-align: center;
    -ms-flex-pack: center;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    background-color: #fff;
}

h1, h3 {
    font-family: Courier, "Courier New", monospace;
}

.btn {
    font-family: Helvetica, Arial, sans-serif !important;
    box-shadow: 0 8px 10px 1px rgba(0, 0, 0, .14), 0 3px 14px 2px rgba(0, 0, 0, .12), 0 5px 5px -3px rgba(0, 0, 0, .2);
    font-size: 45px !important;
    border-radius: 20px !important;
    width: 100px;
    height: 100px;
}

.btn-yes {
    background-color: #fff;
    color: #000;
}

.btn-no {
    background-color: #000;
    color: #fff;
}

.btn:focus,
.btn:active,
.btn.active,
.btn:focus:active {
    background-image: none;
    outline: none;
    -webkit-box-shadow: none;
    box-shadow: 0 2px 2px 0 rgba(0, 0, 0, .14), 0 3px 1px -2px rgba(0, 0, 0, .2), 0 1px 5px 0 rgba(0, 0, 0, .12)
}

.img-u {
    width: 100px;
    margin: 100px 50px;
}

.g-recaptcha-outer{
    margin:0 auto;
    width:304px;
}
.g-recaptcha-inner{

}
.g-recaptcha{
    position:relative;
    left: -2px;
    top: -1px;
}

.error {
    color: red;
}