input-default($params) {
    .input {
        border-radius: 3px;
        border: 1px solid #666666;

        &::-webkit-input-placeholder {
            color:#777777;
            opacity: 0.6;
            transition: opacity 0.3s ease;
        }
        &::-moz-placeholder {
            color:#777777;
            opacity: 0.6;
            transition: opacity 0.3s ease;
        }

        &:focus {
            border-color: #0f90fd;
            box-shadow: 0 0 0 1px #0f90fd;
            position: relative;
            z-index: 3;

            &::-webkit-input-placeholder {
                opacity: 0;
            }
            &::-moz-placeholder {
                opacity: 0;
            }
        }
    }

    .input {
        background: $params.default.bg;
        border-color: $params.default.border;
        color: $params.default.color;
        border-radius: $params.default.radius;
    }
}