css重置reset.css

body, h1, h2, h3, h4, h5, h6, hr, p, blockquote,dl, dt, dd, ul,ol, li,pre,form, fieldset, legend, button, input, textarea,th, td {
  margin: 0;
  padding: 0;
}
body,button, input, select, textarea {
  font: 12px/1.5 tahoma, arial, 5b8b4f53, sans-serif;
}
h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
} address, cite, dfn, em, var {
  font-style
: normal;
} code, kbd, pre, samp {
  font-family: courier new, courier, monospace;
} small {
  font-size: 12px;
} ul, ol {
  list-style: none;
} a {
  text-decoration: none;
} a:hover {
  text-decoration: underline;
} sup {
  vertical-align: text-top;
} sub {
  vertical-align: text-bottom;
} legend {
  color: #000;
} fieldset, img {
  border: none;
} button, input, select, textarea {
  font-size: 100%;
} table {
  border-collapse: collapse;
  border-spacing
: 0;
}
原文地址:https://www.cnblogs.com/xlj-code/p/6256477.html