canvas-a11htmlANDcanvas.html_html/css_WEB-ITnose

             Document       #canvas-wrapper{        width: 1200px;        height: 800px;        position: relative;        margin:50px auto;    }    #canvas{        border: 1px #ddd solid;    }    #controller{        position: absolute;        top:30px;        left:30px;        background:rgba(0,85,116,0.7);        padding:5px 20px 25px 20px;        border-radius: 10px 10px;    }    #controller h1{        color: white;        font-weight: bold;        font-family: "Microsoft Yahei";    }    #controller #canvas-btn{        display: inline-block;        background: #8b0;        color: white;        font-size: 14px;        padding: 5px 15px;    }    #controller #canvas-btn:hover{        text-decoration: none;        background:#7a0;    }    #controller .color-btn{        display: inline-block;        padding:5px 15px;        border-radius: 6px 6px;        font-size: 14px;        margin-top: 10px;        margin-right: 5px;        text-decoration: none;    }    #controller .color-btn:hover{        text-decoration: none;    }    #controller #white-color-btn{        background-color: white;    }    #controller #black-color-btn{        background-color: black;    }      
                     当前游览器不支持Canvas,请更换游览器再试！                 
            
Canvas 绘图之旅
            stop            white            black

      
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