Reset CSS

/*! minireset.css v0.0.6 | MIT License | github.com/jgthms/minireset.css */
html,
body,
p,
ol,
ul,
li,
dl,
dt,
dd,
blockquote,
figure,
fieldset,
legend,
textarea,
pre,
iframe,
hr,
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: normal;
}

ul {
  list-style: none;
}

button,
input,
select,
textarea {
  margin: 0;
}

input::-webkit-input-placeholder{
  color:#aaa;
}
input::-moz-placeholder{   /* Mozilla Firefox 19+ */
  color:#aaa;
}
input:-moz-placeholder{    /* Mozilla Firefox 4 to 18 */
  color:#aaa;
}
input:-ms-input-placeholder{  /* Internet Explorer 10-11 */
  color:#aaa;
}

html {
  box-sizing: border-box;
}

*, *::before, *::after {
  box-sizing: inherit;
}

img,
video {
  height: auto;
  max-width: 100%;
}

iframe {
  border: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

td,
th {
  padding: 0;
}

td:not([align]),
th:not([align]) {
  text-align: left;
}

a:focus,
a:hover{
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}

div:focus{
  outline: none;
}

/*滚动条*/
::-webkit-scrollbar{
  width: 4px;
  height: 8px;
  background-color: #f4f4f4;
}
::-webkit-scrollbar-track{
  border-radius: 3px;
  background-color: #f4f4f4;
}
::-webkit-scrollbar-thumb{
  border-radius: 3px;
  background-color: #cecece;
}
::-webkit-scrollbar-corner{
  background: #00000000;
}