chrome和safari同时都出问题了？？？width不显示

把input换成div 就行 是我两个浏览器都出问题了吗。该怎么修

http://stackoverflow.com/questions/12450776/html-input-button-css-height-not-working-on-safari-and-chrome

Change it from <input> to <button> and add -webkit-appearance: none; to the start of your CSS, eg:

.submitbtn {
    -webkit-appearance: none;
    height: 50px;
    background-color:#FFF;
    color:#666;
    font-weight:bold;
    border: solid #666 1px;
    font-size: 14px;
}

http://blog.csdn.net/xiongxyt2/article/details/17116409