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************************style.css********************************* *{ position: relative; box-sizing: border-box; margin: 0; padding: 0; } .container{ position: relative; width: 100%; min-height: 100vh; background: url('bg.jpg'); background-size: cover; background-position: center; background-repeat: no-repeat; } .container:before{ content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: url('splash.png'); background-position: center; background-size: cover; background-repeat: no-repeat; mix-blend-mode: screen; } .file { padding: 25px; float: center; text-align: center; background-color:violet; } .responsive { width: 30px; height: auto; } .footer { position: fixed; padding: 25px; height: 80px; font-weight: bold ; font-size: 25px; left: 0; bottom: 0; width: 100%; background-color: black; color: white; text-align: center; }