/* offset-x | offset-y | color */ box-shadow: 60px -16px teal; /* offset-x | offset-y | blur-radius | color */ box-shadow: 10px 5px 5px black; /* offset-x | offset-y | blur-radius | spread-radius | color */ box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2); /* inset | offset-x | offset-y | color */ box-shadow: inset 5em 1em gold; /* Any number of shadows, separated by commas */ box-shadow: 3px 3px red, -1em 0 0.4em olive; /* Global keywords */ box-shadow: inherit; box-shadow: initial; box-shadow: unset;
取值說明:
inset
: 默認陰影在邊框外。使用 inset 后,陰影在邊框內(即使是透明邊框),背景之上內容之下。也有些人喜歡把這個值放在最后,瀏覽器也支持。<offset-x> <offset-y>
: 這是頭兩個<length>
值,用來設置陰影偏移量。<offset-x>
設置水平偏移量,如果是負值則陰影位於元素左邊。<offset-y>
設置垂直偏移量,如果是負值則陰影位於元素上面。可用單位請查看<length>
。如果兩者都是0,那么陰影位於元素后面。這時如果設置了<blur-radius>
或<spread-radius>
則有模糊效果。<blur-radius>
: 這是第三個<length>
值。值越大,模糊面積越大,陰影就越大越淡。 不能為負值。默認為0,此時陰影邊緣銳利。<spread-radius>
: 這是第四個<length>
值。取正值時,陰影擴大;取負值時,陰影收縮。默認為0,此時陰影與元素同樣大。<color>
: 相關事項查看<color>
。如果沒有指定,則由瀏覽器決定——通常是color的值,不過目前Safari取透明。
舉栗子~~~
.box {background-color: #CCCCCC; border-radius:10px; width: 200px; height: 200px;} .boxshadow1{ box-shadow:inset 0px 0px 5px 1px #000; }/* 內部陰影 */ .boxshadow2{ box-shadow:inset 0 1px 2px 1px #000; }/* 3邊內影示例 */ .boxshadow3{box-shadow:0 0 10px #000;}/* 外陰影示例 */ .boxshadow4{box-shadow:2px 2px 5px #000;}/* 右下外陰影示例 */ .boxshadow5{box-shadow:0 0 5px 15px #000;}/* 擴大陰影示例 */ .boxshadow6{box-shadow: 12px 12px 2px 1px rgba(0, 0, 255, .2);}/* 半透明陰影色示例 */
效果:
單邊陰影效果
.box { background-color: #CCCCCC; width: 200px; height: 200px;} .boxshadow1{ box-shadow:inset 0px 15px 10px -15px #000; }/* 上邊內陰影示例 */ .boxshadow2{ box-shadow:inset -15px 0px 10px -15px #000;}/* 右邊內陰影示例 */ .boxshadow3{box-shadow:0px 12px 8px -12px #000; border-radius:10px;}/* 下邊外陰影示例 */ .boxshadow4{box-shadow:3px 0 8px -4px #000;}/* 右邊外陰影示例 */ .boxshadow5{ box-shadow: inset 0px -1px 0px 0px rgb(0, 0, 0);}/* 下邊細線示例 */
效果:
雙邊邊陰影及多重陰影效果
.box { background-color: #CCCCCC; width: 100px; height: 100px;} .boxshadow1{ box-shadow:inset 0px 15px 15px -15px #000, inset 0px -15px 15px -15px #000; }/* 上下邊內陰影示例 */ .boxshadow2{ box-shadow:15px 0 15px -15px #000, -15px 0 15px -15px #000; }/* 左右邊外陰影示例 */ .boxshadow3{ border-radius:10px; box-shadow:0px 0px 0px 3px #bb0a0a, 0px 0px 0px 6px #2e56bf, 0px 0px 0px 9px #ea982e; }/* 多層陰影示例 */
效果:
其他一些有意思的陰影:
使用偽元素::before和::after,我們能創造出非常逼真的只有圖片才能實現的陰影效果。
1
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <style type="text/css"> .box11 { width: 300px; height: 100px; background: #ccc; border-radius: 10px; margin: 10px; } .shadow { position: relative; max-width: 270px; box-shadow: 0px 1px 4px rgba(0, 0, 0, 0.3), 0px 0px 20px rgba(0, 0, 0, 0.1) inset; } .shadow::before, .shadow::after { content: ""; position: absolute; z-index: -1; } .shadow::before, .shadow::after { content: ""; position: absolute; z-index: -1; bottom: 15px; left: 10px; width: 50%; height: 20%; } .shadow::before, .shadow::after { content: ""; position: absolute; z-index: -1; bottom: 15px; left: 10px; width: 50%; height: 20%; box-shadow: 0 15px 10px rgba(0, 0, 0, 0.7); transform: rotate(-3deg); } .shadow::after { right: 10px; left: auto; transform: rotate(3deg); } </style> <body> <div class="box11 shadow"></div> </body> </html>
效果:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <style type="text/css"> body { background: #E6EEF6; } .wrap { margin-left: 20px; } .box { width: 40%; height: 200px; float: left; background-color: white; margin: 25px 15px; border-radius: 5px; } .box h3 { font-family: 'Didact Gothic', sans-serif; font-weight: normal; text-align: center; padding-top: 60px; color: #fff; } .box1 { background-color: #EBA39E; } .box2 { background-color: #EDE89A; } .box3 { background-color: #9EEBA1; } .box4 { background-color: #9EEBBF; } .box5 { background-color: #9ED9EB; } .box6 { background-color: #9EB3EB; } .box7 { background-color: #DB9EEB; } .box8 { background-color: #C49EEB; } .shadow1, .shadow2, .shadow3, .shadow4, .shadow5, .shadow6, .shadow7, .shadow8 { position: relative; } .shadow1, .shadow2, .shadow3, .shadow4, .shadow5, .shadow6, .shadow7, .shadow8 { box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 0, 0, 0.1) inset; } /*****************************************************************dashed border ****************************************************************/ .shadow1 h3, .shadow2 h3, .shadow3 h3, .shadow4 h3, .shadow5 h3, .shadow6 h3, .shadow7 h3, .shadow8 h3 { width: 87%; height: 100px; margin-left: 6%; border: 2px dashed #F7EEEE; border-radius: 5px; } /**************************************************************** *styling shadows ****************************************************************/ .shadow1:before, .shadow1:after { position: absolute; content: ""; bottom: 12px; left: 15px; top: 80%; width: 45%; background: #9B7468; z-index: -1; -webkit-box-shadow: 0 20px 15px #9B7468; -moz-box-shadow: 0 20px 15px #9B7468; box-shadow: 0 20px 15px #9B7468; -webkit-transform: rotate(-6deg); -moz-transform: rotate(-6deg); transform: rotate(-6deg); } .shadow1:after { -webkit-transform: rotate(6deg); -moz-transform: rotate(6deg); transform: rotate(6deg); right: 15px; left: auto; } .shadow2:before { position: absolute; content: ""; width: 80%; top: 140px; bottom: 15px; left: 30px; background-color: #9F8641; z-index: -1; -webkit-box-shadow: 0 23px 17px 0 #9F8641; -moz-box-shadow: 0 23px 17px 0 #9F8641; box-shadow: 0 23px 17px 0 #9F8641; -webkit-transform: rotate(-4deg); -moz-transform: rotate(-4deg); transform: rotate(-4deg); } .shadow3:before, .shadow3:after { content: ""; position: absolute; bottom: 0; top: 2px; left: 15px; right: 15px; z-index: -1; border-radius: 100px/30px; -webkit-box-shadow: 0 0 30px 2px #479F41; -moz-box-shadow: 0 0 30px 2px #479F41; box-shadow: 0 0 30px 2px #479F41; } .shadow4:before, .shadow4:after { position: absolute; content: ""; top: 14px; bottom: 14px; left: 0; right: 0; box-shadow: 0 0 25px 3px #548E7F; border-radius: 100px/10px; z-index: -1; } .shadow5:before, .shadow5:after { position: absolute; content: ""; box-shadow: 0 10px 25px 20px #518C96; top: 40px; left: 10px; bottom: 50px; width: 15%; z-index: -1; -webkit-transform: rotate(-8deg); -moz-transform: rotate(-8deg); transform: rotate(-8deg); } .shadow5:after { -webkit-transform: rotate(8deg); -moz-transform: rotate(8deg); transform: rotate(8deg); right: 10px; left: auto; } .shadow6:before, .shadow6:after { position: absolute; content: ""; top: 100px; bottom: 5px; left: 30px; right: 30px; z-index: -1; box-shadow: 0 0 40px 13px #486685; border-radius: 100px/20px; } .shadow7:before, .shadow7:after { position: absolute; content: "1"; top: 25px; left: 20px; bottom: 150px; width: 80%; z-index: -1; -webkit-transform: rotate(-6deg); -moz-transform: rotate(-6deg); transform: rotate(-6deg); } .shadow7:before { box-shadow: 10px -10px 30px 15px #984D8E; } .shadow7:after { -webkit-transform: rotate(7deg); -moz-transform: rotate(7deg); transform: rotate(7deg); bottom: 25px; top: auto; box-shadow: 10px 10px 30px 15px #984D8E; } .shadow8 { box-shadow: -6px -6px 8px -4px rgba(250, 254, 118, 0.75), 6px -6px 8px -4px rgba(254, 159, 50, 0.75), 6px 6px 8px -4px rgba(255, 255, 0, 0.75), 6px 6px 8px -4px rgba(0, 0, 255, 2.75); } </style> <body> <div class="wrap"> <div class="box box1 shadow1"> <h3>Shadow 1</h3> </div> <div class="box box2 shadow2"> <h3>Shadow 2</h3> </div> <div class="box box3 shadow3"> <h3>Shadow 3</h3> </div> <div class="box box4 shadow4"> <h3>Shadow 4</h3> </div> <div class="box box5 shadow5"> <h3>Shadow 5</h3> </div> <div class="box box6 shadow6"> <h3>Shadow 6</h3> </div> <div class="box box7 shadow7"> <h3>Shadow 7</h3> </div> <div class="box box8 shadow8"> <h3>Shadow 8</h3> </div> </div> </body> </html>
效果: