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<p><strong>CSS3控制的中心点缩放</strong></p>
<div class="svg">
    <div class="rect scale"></div>
</div>
<p><strong>SVG属性控制中心点缩放</strong></p>
<svg width="200" height="150">
    <rect x="30" y="30" width="120" height="90" rx="10" ry="10" fill="#a0b3d6" 
        transform="translate(90 75) scale(1, 1.5) translate(-90 -75)">
    </rect>
</svg>

svg, .svg {
    background-color: #f0f3f9;
}
.svg {
    width: 200px; height: 150px;
}
.rect {
    width: 120px; height: 90px;
    position: absolute;
    margin: 30px 0 0 30px;
    border-radius: 10px;
    background-color: #a0b3d6;
}
.scale {
    transform: scale(1, 1.5);
}