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<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>.trapezoid { border-bottom: 50px solid #555; border-left: 25px solid transparent; border-right: 25px solid transparent; height: 0; width: 125px;}</style></head><body><h2>Trapezoid CSS</h2><div class="trapezoid "></div></body></html>