html {
    background-color: #2196f3;
    min-height: 1000px;
    font-family: "helvetica neue";
    background: url(../img/fondo.png), #2196f3;
    background: url(../img/fondo.png),
    -webkit-gradient(linear, right top, left top, from(#2196f3), to(#009688));
    background: url(../img/fondo.png),
    linear-gradient(to left, #2196f3, #009688);
}

h1 {
    color: #fff;
    padding: 10px;
}

.container {
    max-width: 400px;
    margin: 50px auto;
    background: white;
    border-radius: 5px;
    box-shadow: 5px 5px 15px -5px rgba(0, 0, 0, 0.3);
}

#header {
    background-color: #031ca1;
    text-align: center;
}

.element {
    min-height: 70px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f1f1f1;
}

.element:last-child {
    border-bottom: 0;
}

input[type="checkbox"] {
    margin: 20px;
}

p {
    margin: 0;
    padding: 20px;
    font-size: 20px;
    font-weight: 200;
    color: #00204a;
}

form {
    text-align: center;
    margin-left: 20px;
}

button {
    min-height: 50px;
    width: 50px;
    border-radius: 50%;
    border-color: transparent;
    background-color: #031ca1;
    color: #fff;
    font-size: 30px;
    padding-bottom: 6px;
    border-width: 0;
}

input[type="text"] {
    text-align: center;
    height: 60px;
    top: 10px;
    border: none;
    background: transparent;
    font-weight: 200;
    width: 40%;
}

input[type="text"]:focus {
    outline: none;
    box-shadow: inset 0 -3px 0 0 #031ca1;
}

::placeholder {
    color: grey;
    opacity: 1;
}

#btn-container {
    text-align: center;
}

#btn-effect {
    padding: 0px;
    cursor: pointer;
}