body,
dl,
dd,
ul,
ol,
h1,
h2,
h3,
h4,
h5,
h6,
p,
form,
header,
section,
article,
footer {
  margin: 0;
}
body,
button,
input,
select,
textarea {
  font: 14px tahoma, sans-serif;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
}
em,
b {
  font-style: normal;
}
a {
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
img {
  border: 0;
}
button,
input,
select,
textarea {
  font-size: 100%;
  outline: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
td,
th,
ul,
ol {
  padding: 0;
  list-style-type: none;
}
* {
  box-sizing: border-box;
}
body {
  font-family: Avenir,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #2c3e50;
}
html {
  scroll-behavior: smooth;
}
.container {
  width: 1080px;
  margin: 0 auto;
  position: relative;
}
.flex {
  display: flex;
}
.align-center {
  justify-content: center;
}