Can I ignore some website element when navigating using the tab key?

You can set the tabindex="-1" on this element so it's ignored in the tab order. 0 tells the browser to figure out the tab order on it's own, -1 tells the browser to ignore it.

You can use tabindex attribute to define order in which the tab key should cycle through elements. If you set tabindex="-1" the element will be skipped.

More info is available here http://www.webcheatsheet.com/HTML/controll_tab_order.php for example.

UPDATE changed tabindex="0" to "-1" based on comments

Are there polynomials in $\mathbb{R}[x]$, other than $P(x)=x^2$, such that $P(\sin x)+P(\cos x)=1$ for all real $x$?

How prove this $\left(\int_{-\pi}^{\pi}f(x)\sin{x}dx\right)^2+\left(\int_{-\pi}^{\pi}f(x)\cos{x}dx\right)^2\le\frac{\pi}{2}\int_{-\pi}^{+\pi}f^2(x)dx$

Prove $\int^\infty_0 \frac{e^{-t}}{t}\left[\frac1{t^2}-\frac1{(1-e^{-t})^2}+\frac1{1-e^{-t}}-\frac1{12}\right]dt=\frac34-\zeta'(-1)+\zeta'(0)$

UPDATED: If $f(x + y) \leq yf(x) + f(f(x))$ for all real numbers $x$ and $y$, prove that $f(0) = 0.$

Maven archetype for simple Servlet application

Quotient of $ S^3 \times S^3$ by a free torus action.

Evaluate $\sum _{n=1}^{\infty } \frac{1}{n^5 2^n \binom{3 n}{n}}$ in terms of elementary constants

(Long) Detailed Proof of Kőnig's Lemma (Explicit, Down to Axiom of Choice)

Splitting a continuous monotonically-increasing function $f(x)$ as $h(x)+h(x+\epsilon) = f(x)$

Suppose that $f$ is an entire function satisfying $f(2z)=\frac{f(z)+f(z+1)}{2}$. Show that $f$ is constant. [duplicate]