body {
    -webkit-tap-highlight-color: transparent;
}

input {
    font-size: 14px;
    border-color: #ccc;
    border-width: 1px;
    border-style: solid;
    padding: 7px;
    border-radius: 4px;
}

button {
    font-size: 14px;
    border-radius: 9999px;
    border-color: transparent;
    font-weight: bold;
    padding: 7px;
    background-color: #808080;
    color: white;
    cursor: pointer;
}

button:hover {
    background-color: #8f8f8f;
}

button:active {
    background-color: #9e9e9e;
}

button:disabled {
    background-color: whitesmoke;
    color: lightgrey;
    cursor: default;
}

input:focus {
    border-color: #3e3e3e;
    outline: none;
}

input:invalid:not(:focus):not(:placeholder-shown) {
    border-color: tomato;
}