CSSとsvgを使い、アニメーションする波をテキストで切り抜いてタイトルを強調します。次のサンプルのテキスト「BtoB WEB」で切り抜いた部分が波のように動きます。
サンプルのhtmlソース
<div class="center">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0" y="0" width="800" height="220" xml:space="preserve">
<pattern id="water" width=".25" height="1.1" patternContentUnits="objectBoundingBox">
<path fill="#fff" d="M0.25,1H0c0,0,0-0.659,0-0.916c0.083-0.303,0.158,0.334,0.25,0C0.25,0.327,0.25,1,0.25,1z"/>
</pattern>
<g>
<text id="text" x="115" y="150" style="font-weight:bold;font-size: 98pt; font-family:helvetica">BtoB WEB</text>
</g>
<mask id="text-mask">
<use x="0" y="0" xlink:href="#text" opacity="1" fill="#ffffff"/>
</mask>
<g id="eff">
<use x="0" y="0" xlink:href="#text" fill="#69a8c9"/>
<rect class="water-fill" mask="url(#text-mask)" fill="url(#water)" x="-300" y="100" width="1200" height="120" opacity="0.3">
<animate attributeType="xml" attributeName="x" from="-300" to="0" repeatCount="indefinite" dur="3s"/>
</rect>
<rect class="water-fill" mask="url(#text-mask)" fill="url(#water)" y="95" width="1600" height="120" opacity="0.3">
<animate attributeType="xml" attributeName="x" from="-400" to="0" repeatCount="indefinite" dur="4s"/>
</rect>
<rect class="water-fill" mask="url(#text-mask)" fill="url(#water)" y="105" width="800" height="120" opacity="0.3">
<animate attributeType="xml" attributeName="x" from="-200" to="0" repeatCount="indefinite" dur="2.4s"/>
</rect>
<rect class="water-fill" mask="url(#text-mask)" fill="url(#water)" y="105" width="2000" height="120" opacity="0.3">
<animate attributeType="xml" attributeName="x" from="-500" to="0" repeatCount="indefinite" dur="3.8s"/>
</rect>
</g>
<use xlink:href="#eff" opacity="0.9"/>
</svg>
<span>受注システム</span>
</div>
サンプルのCSSソース
.center {
width: 800px;
height: 350px;
margin: 0 auto;
background: #15b;
text-align: center;
position: relative;
}
.center span {
font-size: 90px;
font-weight: bold;
color: #48e;
position: relative;
top: -30px;
}
svg {
display: block;
position: relative;
left: -40px;
}