html {
    background: url(../images/banner3.jpg);
    background-size: cover;
    background-position:initial;
    margin: 0;
    padding: 0;
}

body {
    background-image: url(../images/svgbg.svg);
    background-repeat: no-repeat;
    background-position: center;
    margin: 100px 0;
    padding: 0;
}
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #0000004d;
}

footer {
    position: fixed;
    bottom: 0;
    height: 50px;
    width: 100%;
    background-image: url(../images/logotecnm.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size:contain;
    box-shadow:1px 1px red;
    background-color: rgb(255, 255, 255, 0.60);
}


small{
    color:white;
    text-align:center;
    display:block;
    margin:3px; 
}
header h1 {
    font-family: 'Segoe UI';
    margin: 0;
    padding: 10px;
    color: white;
    font-size: 2em;
}

main {
    width: 300px;
    margin: auto;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
}

main img{
    width:100px;
    margin:10px;
}

main{
    text-align:center;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
input {
    border: 1px solid white;
    background-color: transparent;
    color: white;
    padding: 10px;
    display: block;
    margin: auto;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin-bottom: 20px;
    width: 100%;

}
    input[type=submit]{
        border: none;
        color: white;
        background-color: #F7A573;
        border-radius:10px;
        display: block;
        margin: auto;
        width: 100px;
        
    }

        input[type=submit]:hover {
            background: #F78B42;
            cursor: pointer;
        }

.spinner {
    border: 4px solid #f3f3f3; /* Light grey */
    border-top: 4px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 15px;
    height: 15px;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}


a{
    color:white;
}
::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
    color: white;
    opacity: 1; /* Firefox */
}

:-ms-input-placeholder { /* Internet Explorer 10-11 */
    color: white;
}

::-ms-input-placeholder { /* Microsoft Edge */
    color: white;
}