#caselist{}
#caselist .caseul{}
#caselist .caseul li{ position: relative; width: 380px; height: 538px; margin-bottom: 15px; margin-right: 30px; float: left;}
#caselist .caseul li:nth-of-type(3n+3){ margin-right: 0;}
#caselist .caseul li a{}
#caselist .caseul li img{ width: 380px; height: 496px; position: absolute; top: 0;}
#caselist .caseul li p{ position: absolute; top: 496px; width: 100%; background: #c01727; text-align: center; font-size: 16px; line-height: 42px; color: #fff;}