Botón de Google

google-btn.html

<div 
    className="google-btn"
>
    <div className="google-icon-wrapper">
        <img className="google-icon" src="https://upload.wikimedia.org/wikipedia/commons/5/53/Google_%22G%22_Logo.svg" alt="google button" />
    </div>
    <p className="btn-text">
        <b>Sign in with google</b>
    </p>
</div>

google-btn.scss

$white: #fff;
$google-blue: #4285f4;
$button-active-blue: #1669f2;

.google-btn {
    cursor: pointer;
    margin-top: 5px;
    width: 100%;
    height: 42px;
    background-color: $google-blue;
    border-radius: 2px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.25);

    transition: box-shadow .3s ease;

    .google-icon-wrapper {
        position: absolute;
        margin-top: 1px;
        margin-left: 1px;
        width: 40px;
        height: 40px;
        border-radius: 2px;
        background-color: $white;
    }
    .google-icon {
        position: absolute;
        margin-top: 11px;
        margin-left: 11px;
        width: 18px;
        height: 18px;
    }
    .btn-text {
        float: right;
        margin: 11px 40px 0 0;
        color: $white;
        font-size: 14px;
        letter-spacing: 0.2px;
    }
    &:hover {
        box-shadow: 0 0 6px $google-blue;
    }
    &:active {
        background: $button-active-blue;
    }
}