.icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.icon-sm {
    width: 0.875em;
    height: 0.875em;
}

.icon-lg {
    width: 1.25em;
    height: 1.25em;
}