边框阴影
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>drop-shadows</title> 6 <style> 7 body { 8 padding: 20px 0 0; 9 font: 14px/1.5 Arial, sans-serif; 10 text-align: center; 11 color: #333; 12 background: #ccc; 13 } 14 15 .drop-shadow { 16 position: relative; 17 width: 45%; 18 padding: 1em; 19 margin: 2em auto 5em; 20 background: #fff; 21 box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset; 22 } 23 24 .drop-shadow:before, 25 .drop-shadow:after { 26 content: ""; 27 position: absolute; 28 z-index: -2; 29 bottom: 15px; 30 left: 10px; 31 width: 50%; 32 height: 20%; 33 } 34 35 .drop-shadow:after { 36 right: 10px; 37 left: auto; 38 } 39 40 .round { 41 border-radius: 4px; 42 } 43 44 .round:before, 45 .round:after { 46 max-width: 300px; 47 box-shadow: 0 15px 10px rgba(0, 0, 0, 0.7); 48 transform: rotate(-3deg); 49 } 50 51 .round:after { 52 transform: rotate(3deg); 53 } 54 55 .curls { 56 border: 1px solid #efefef; 57 border-radius: 0 0 120px 120px / 0 0 6px 6px; 58 } 59 60 .curls:before, 61 .curls:after { 62 bottom: 12px; 63 max-width: 200px; 64 height: 55%; 65 box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4); 66 transform: skew(-8deg) rotate(-4deg); 67 } 68 69 .curls:after { 70 transform: skew(8deg) rotate(4deg); 71 } 72 73 .perspective:before { 74 left: 28px; 75 bottom: 8px; 76 max-width: 200px; 77 height: 35%; 78 box-shadow: -60px 5px 8px rgba(0, 0, 0, 0.4); 79 transform: skew(50deg); 80 } 81 82 .perspective:after { 83 display: none; 84 } 85 86 .raised:before { 87 width: auto; 88 right: 10px; 89 left: 10px; 90 bottom: 0; 91 box-shadow: 0 8px 10px rgba(0, 0, 0, 0.5); 92 } 93 94 .rotated { 95 transform: rotate(-3deg); 96 } 97 98 .rotated *:first-child:before { 99 content: ""; 100 position: absolute; 101 z-index: -1; 102 top: 0; 103 bottom: 0; 104 left: 0; 105 right: 0; 106 background: #fff; 107 box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset; 108 } 109 110 </style> 111 </head> 112 <body> 113 114 <div class="drop-shadow round"> 115 <h1>CSS drop-shadows without images</h1> 116 <p>No extra markup, fluid, all modern browsers</p> 117 </div> 118 119 <div class="drop-shadow curls"> 120 <h1>Some curls</h1> 121 <p>No extra markup, all modern browsers</p> 122 </div> 123 124 <div class="drop-shadow perspective"> 125 <h1>Some perspective</h1> 126 <p>No extra markup, all modern browsers</p> 127 </div> 128 129 <div class="drop-shadow raised"> 130 <h1>Raised box</h1> 131 <p>No extra markup, all modern browsers</p> 132 </div> 133 134 <div class="drop-shadow round rotated"> 135 <h1>Rotated box</h1> 136 <p>No extra markup, all modern browsers. Needs a child element to work.</p> 137 </div> 138 </body> 139 </html>