.logo {
    background: url('/assets/logo.png') no-repeat center;
    @include background-size(100%);
}

.logo--wordmark {
    @include background-size(auto 100%);
    background-position: left center;
    border: 0;
    @include box-sizing(border-box);
    color: $black;
    font-family: $slab;
    font-size: 1.4rem;
    font-weight: bold;
    height: 3.8rem;
    padding: 1.4rem 0 1.4rem 6rem;
}

.tagline {
    font-size: .8rem;
    opacity: .35;
    text-align: center;

    a {
        border: 0;
        color: $white;
        font-weight: bold;
    }
}
.logo {
    background: url(image-path('logo.png')) no-repeat center;
    @include background-size(100%);
}

.logo--wordmark {
    @include background-size(auto 100%);
    background-position: left center;
    border: 0;
    @include box-sizing(border-box);
    color: $black;
    font-family: $slab;
    font-size: 1.4rem;
    font-weight: bold;
    height: 3.8rem;
    padding: 1.4rem 0 1.4rem 6rem;
}

.tagline {
    font-size: .8rem;
    opacity: .35;
    text-align: center;

    a {
        border: 0;
        color: $white;
        font-weight: bold;
    }
}

Use Rails' image-path helper to use Asset Pipeline URLs.
Use Rails' image-path helper to use Asset Pipeline URLs.
