基本瞭解CSS語法,初步瞭解CSS3語法知識。css
Adobe Dreamweaver CS6/Chrome瀏覽器html
演示地址css3
利用CSS3屬性製做按鈕,咱們只須要用到Gradient屬性,不用使用任何圖片素材和JavaScript代碼,僅僅經過CSS就能製做出好看的漸變按鈕。按鈕的大小能夠經過CSS屬性就能輕鬆的修改,並且它可使用html的不少標籤來製做,好比div,button,span,a,input[‘submit’]等等。下列案例就是經過CSS3製做的按鈕:web
下圖爲支持CSS3和不支持CSS3瀏覽器下不一樣的渲染效果。瀏覽器
1,在body中添加html標籤學習
<a href="#" class="a_demo"> Click me! </a>
2,給<a>標籤添加Normal和Active 狀態, 這裏須要給元素添加相對定位屬性, 由於咱們後面須要對::before僞元素進行定位。網站
.a_demo { background-color:#3bb3e0; width:150px; display:inline-block; font-family: Arial, Helvetica, sans-serif; font-size:12px; text-align:center; text-decoration:none; color:#fff; position:relative; margin-top:40px; padding-bottom:10px; padding-top:10px; background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%); background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%); background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%); background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%); background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%); background-image: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(44,160,202)), color-stop(1, rgb(62,184,229)) ); -webkit-border-bottom-right-radius: 5px; -webkit-border-bottom-left-radius: 5px; -moz-border-radius-bottomright: 5px; -moz-border-radius-bottomleft: 5px; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; -webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999; -moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999; -o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999; box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999; } .a_demo:active { top:0px; background-image: linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%); background-image: -o-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%); background-image: -moz-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%); background-image: -webkit-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%); background-image: -ms-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%); background-image: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(62,184,229)), color-stop(1, rgb(44,160,202)) ); -webkit-box-shadow: inset 0px 4px 1px #0b698b, 0px 2px 0px 0px #156785, 0px 5px 3px #999; -moz-box-shadow: inset 0px 4px 1px #0b698b,0px 2px 0px 1px #156785, 0px 5px 3px #999; -o-box-shadow:inset 0px 4px 1px #0b698b, 0px 2px 0px 1px #156785, 0px 5px 3px #999; box-shadow: inset 0px 4px 1px #0b698b, 0px 2px 0px 0px #156785, 0px 5px 3px #999; }
3,添加::before僞元素。url
.a_demo::before { background-color:#fff; background-image:url(Pic/heart.gif); background-repeat:no-repeat; background-position:center center; content:""; width:150px; height:40px; position:absolute; top:-30px; left:0px; margin-top:-11px; z-index:-1; -webkit-border-top-left-radius: 5px; -webkit-border-top-right-radius: 5px; -moz-border-radius-topleft: 5px; -moz-border-radius-topright: 5px; border-top-left-radius: 5px; border-top-right-radius: 5px; } .a_demo:active::before { top: -30px; -webkit-box-shadow: 0px 3px 0px #ccc; -moz-box-shadow: 0px 3px 0px #ccc; -o-box-shadow: 0px 3px 0px #ccc; box-shadow: 0px 3px 0px #ccc; }
最終效果以下圖:spa
下面給你們推薦幾個CSS3按鈕源碼網站:3d
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