001    /*
002     * Licensed under the Apache License, Version 2.0 (the "License");
003     * you may not use this file except in compliance with the License.
004     * You may obtain a copy of the License at
005     *
006     * http://www.apache.org/licenses/LICENSE-2.0
007     *
008     * Unless required by applicable law or agreed to in writing, software
009     * distributed under the License is distributed on an "AS IS" BASIS,
010     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
011     * See the License for the specific language governing permissions and
012     * limitations under the License.
013     * 
014     * See the NOTICE file distributed with this work for additional
015     * information regarding copyright ownership.
016     */
017    
018    package com.osbcp.css.unit;
019    
020    import java.io.Serializable;
021    
022    /**
023     * Represents a CSS unit
024     * 
025     * @see <a href="http://w3schools.com/cssref/css_units.asp">CSS Units</a>
026     * @author <a href="mailto:christoffer@christoffer.me">Christoffer Pettersson</a>
027     */
028    
029    public interface Unit extends Serializable {
030    
031            @Override
032            public String toString();
033    
034    }