Why do CSS styles break under iOS(safari)?

Question

css

There is a select element on the site, under windows (chrome) it looks like this

and under iOS (Safari) this


is the css code

.sel  {
  margin-top: 18px;
  font-size: 17px;
  box-sizing: border-box;
  position: relative;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  height: 66px;
  background: #eef2f7;
  background-clip: padding-box;
  border: 1px solid #eef2f7;
  border-radius: 6px;
  border-collapse: separate;
  color: #333;
  text-align: left;
  cursor: text;
  padding: 17px;
}

Answer 1

Install the kernel-devel package.