locomotive-boilerplate/assets/styles/generic/_button.scss

// ==========================================================================
// Generic / Buttons
// ==========================================================================

// 1. Allow us to style box model properties.
// 2. Fixes odd inner spacing in IE7.
// 3. Reset/normalize some styles.
// 4. Line different sized buttons up a little nicer.
// 5. Make buttons inherit font styles (often necessary when styling `input`s as buttons).
// 6. Force all button-styled elements to appear clickable.

button,
.c-button {
    @include u-hocus {
        text-decoration: none;
    }

    display: inline-block; // [1]
    overflow: visible; // [2]
    margin: 0; // [3]
    padding: 0;
    outline: 0;
    border: 0;
    background: none transparent;
    color: inherit;
    vertical-align: middle; // [4]
    text-align: center; // [3]
    text-decoration: none;
    text-transform: none;
    font: inherit; // [5]
    line-height: normal;
    cursor: pointer; // [6]
    user-select: none;
}