*{
    margin:0;
    padding:0;
}

body {
    background-color: #b8c4ff;
    color: #bee1ff;
    font:14px/1.3 Arial,sans-serif;
}
header {
    background-color: #212121;
    box-shadow: 0 -1px 2px #111111;
    display:block;
    height:70px;
    position:relative;
    width:100%;
    z-index:100;
}
header h2{
    font-size:22px;
    font-weight:normal;
    left:50%;
    margin-left:-400px;
    padding:22px 0;
    position:absolute;
    width:540px;
}
header a.stuts,a.stuts:visited {
    border:none;
    text-decoration:none;
    color:#fcfcfc;
    font-size:14px;
    left:50%;
    line-height:31px;
    margin:23px 0 0 110px;
    position:absolute;
    top:0;
}
header .stuts span {
    font-size:22px;
    font-weight:bold;
    margin-left:5px;
}

input[type=radio] {
    display:none;
}

input[type=radio] + label {
    display:inline-block;
    padding: 5px 15px;
    margin: -2px -2px 0;
    font-size: 14px;
    line-height: 20px;
    color: white;
    text-align: center;
    text-shadow: 0 1px 1px rgba(255,255,255,0.75);
    vertical-align: middle;
    cursor: pointer;
    background-color: blue;
    background-image: -moz-linear-gradient(top, #eeeeee, #0000ff);
    background-image: -webkit-gradient(linear,0 0,0 100%,from(#eeeeee),to(#0000ff));
    background-image: -webkit-linear-gradient(top,#eeeeee, #0000ff);
    background-image: -o-linear-gradient(top,#eeeeee, #0000ff);
    background-image: linear-gradient(to bottom,#eeeeee,#0000ff);
    background-repeat: repeat-x;
    border: 1px solid rgba(253, 252, 255, 0.1);
    border-bottom-color: #0000ff;
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffffff',endColorstr='#ffe6e6e6',GradientType=0);
    filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
    -webkit-box-shadow: inset 0 1px 0 rgba(255,255,255,0.2),0 1px 2px rgba(57, 113, 185, 0.05);
    -moz-box-shadow: inset 0 1px 0 rgba(255,255,255,0.2),0 1px 2px rgba(57, 113, 185, 0.05);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.2),0 1px 2px rgba(57, 113, 185, 0.05);
}

input[type=radio]:checked + label {
    background-image: none;
    outline: 0;
    -webkit-box-shadow: inset 0 2px 4px rgba(0,0,0,0.15),0 1px 2px rgba(0,0,0,0.05);
    -moz-box-shadow: inset 0 2px 4px rgba(0,0,0,0.15),0 1px 2px rgba(0,0,0,0.05);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.15),0 1px 2px rgba(0,0,0,0.05);
    background-color:#e0e0e0;
}

#myCanvas {
    background: #4b4b4b;
    position: absolute;
    top:10%;
    left:25%;
    width: 990px;
    height: 640px;
    background-color: white;
}

.main_m {
    margin-left: 5px;
    margin-top: 5px;
    top: 10vh;
    position: absolute;
    float: left;
    width: 6vw;
    min-width: 80px;
    height: 90vh;
    min-height: 350px;
    z-index: 999;
}

.m_button {
      background-color: blue;
      color: white;
      bottom: 0;
      height: 30px;
      font-size: 14pt;
      float: left;
      width: 200px;
      margin: 0 auto;
    }
    .m_button:hover {
      background-color: skyblue;
    }

    .m_button:disabled {
      background-color: grey;
    }