*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family:
        system-ui,
        -apple-system,
        Segoe UI,
        Roboto,
        Arial,
        sans-serif;
    text-rendering: optimizeLegibility;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

button {
    cursor: pointer;
    background: none;
    border: none;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}
/* Buttons */
.btn {
    border-radius: 5px;
    border: 1px solid red;
    font-size: 18px;
    background: white;
    color: red;
    padding: 5px 14px;
    float: left;
    margin: 4px;
}
.btn:hover {
    background: red;
    color: white;
    cursor: pointer;
}

/* Tablet */
@media (min-width: 640px) {
}

/* Smartphone */
@media (max-width: 640px) {
}